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Finding the Fourth Proportional to 78,755.37, 108,685.04 and 42,947.34

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Solution

The fourth proportional to 78,755.37, 108,685.04 and 42,947.34 is: 59,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755.37 : 108,685.04 = 42,947.34 : x
  2. Step 2: Convert to fraction form
    78,755.37/108,685.04 = 42,947.34/x
  3. Step 3: Cross multiply
    78,755.37x = 108,685.04 × 42,947.34
  4. Step 4: Simplify right side
    78,755.37x = 4,667,733,151.06
  5. Step 5: Solve for x
    x = 4,667,733,151.06/78,755.37
  6. Step 6: Final answer
    x = 59,268.76

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