Ok so my total PIC XC would be 45 hours out of the 88 hours XC total since I subtracted the XC that was not solo time during PPL training. So that leaves 5 hours left to complete XC PIC before the check ride.
Im just curious how/why you logged so much XC time Dual getting your PPL. Looking at my log book, my total Dual XC time was 5.4 hours compared to your 43 hours dual. I know some people go through more XC's for comfort or skill but that's 8X as much XC time logged dual than I did. 2-3x I'd be less inclined to ask but 43 hours? That's a lot of time to be paying an instructor for a ride along... In fact that's more hours than some people spend getting their license.
Also, dont forget there is a XC component to the IR. Typically, most instructors seem to do this the same way they do the PPL XC with a "short" 50NM trip to check progress before going on a "long" 250NM trip with a stop 100NM from the start to meet the requirement. Both XC's are done with your CFII but count towards your PIC XC time. You'll probably pick up a minimum of 0.75 to 1.5 on the short xc and 2 to 2.5 hours on the long one so that's another 3-4 hours... And that's just based on the speed of the plane going direct; in all likelihood, due to routing, holds, delays, and approaches you're easily looking at your needed 5 hours and if it looks like you're going to wind up short, you can always spend some time circling in a hold or shooting missed approaches. In fact, if you do an approach to missed and then an approach to landing at each airport you'll easily add another hour and putting you well above 50 hours by then.
If you still find you're just at 50 hours before the check ride, personally, I'd go put in an extra XC or two trying to get the time up to 51-55 hours... If you're right on the line, the DPE might take a closer look at your log book and you dont want to have one of your XC's disqualified on the day of your check ride... an extra 1% (0.5hrs) is good but more is better 2-10% is likely just to get a cursory glance
If you choose not to put in more xc time and go for the checkride right at 50hrs, I'd recommend sending your logs to the DPE a few days before the checkride so they can review them. Nothing worse then spending the time and money on a DPE only to have a log issue on the day of.
All that being said, with your 88 hours of XC, I doubt the DPE will look too closely either way... You might have done 43 hours as non-PIC, Dual, Pre-PPL but chances are they'll expect the actual number of those numbers to be much less and even if they do the math, they probably wont disqualify any of your PIC XC's given the expectation that you spent more time doing DUAL XC than many people spend getting their PPL.