The situation in which the magnitude of the total force is greater than the magnitude of each of the individual forces occurs when two people stand on the same side of a large box and one pushes while the other pulls with the same amount of force.
In this scenario, the forces are working together (along the same direction), resulting in a total force that is the sum of the individual forces. In contrast, when forces oppose each other (as in two people standing on opposite sides of the box, pushing and pulling), the total force will be less than the magnitude of each individual force due to their cancellation.