Rated thrust is Max Takeoff Thrust at ISA. (sealevel, 15 C etc)
Not quite.
So, looking at Clarence Oveur's diagram,
the CF6 50C2 engine will output;
52.500 lbf at N1= 111,8 at 15C and sealevel
Besides just stating the obvious - I am sure everybody can use the chart - note that there is a difference between installed thrust and ideal thrust.