A tall tower was photographed from an elevation of 3000 m above MSL. The distance of the image of the top of the tower from the principal point is 123.50 mm and the distance of the image of the bottom of the tower from the principal point is 90.30 mm. If the elevation of the bottom of the tower is 2200 m from MSL, then the height of the tower is ______ (in m)
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