I used this site : GPS Coordinate Converter, Maps and Info .... and when I put your coords in, the GPS version is the only one that ends in 3 digits. Unfortunately, Google has gotten a little uppity in recent years & won't show me the map for some reason, like it did when I used this site to convert about 400 coords from DMS to DD for my Lowrance units.
Believe me when I say I tried a similar trick, but I cut off the number at the end (thinking it would only be a few feet diff) .... only to find out that my shortened coords put the brushpile somewhere in Siberia
Hope it helps. And if the Google map won't show up for you, either, then try those "GPS" version coords in your unit & see where the new waypoint comes up on your unit's map. If it shows up on your unit's map where you think is correct, then the GPS coords version can be used to convert other coordinates.