A man drags a 72 -kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted $25^{\circ}$ above the horizontal, and the strap is inclined $61^{\circ}$ above the horizontal. The center of gravity of the crate coincides with its geometrical center, as indicated in the drawing. Find the magnitude of the tension in the strap.