Use the formula for the volume of a rectangular pyramid to find the volume of a pyramid-shaped tent whose height is 75 inches, width is 111 inches, and length is 111 inches when standing.
The formula for the volume of a rectangular pyramid is:
V = (1/3) * length * width * height
Plugging in the given values:
V = (1/3) * 111 inches * 111 inches * 75 inches
V = (1/3) * 1361975 cubic inches
V = 453,325 cubic inches
Therefore, the volume of the pyramid-shaped tent is 453,325 cubic inches.