Peter, traveling at the rate of 17.6 ft/min, is approaching an intersection. At a road at right angle with Peter’s path is Mary Jane, traveling at the rate of 8 ft/min, is also approaching the intersection. When Peter is 120 ft from the intersection, his direct distance to Mary Jane is 136 ft. Determine the rate at which they are approaching each other when Mary Jane is 24 ft away from the intersection.

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