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Finding the Fourth Proportional to 73,191.60, 109,787.40 and 71,791.92

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Solution

The fourth proportional to 73,191.60, 109,787.40 and 71,791.92 is: 107,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,191.60 : 109,787.40 = 71,791.92 : x
  2. Step 2: Convert to fraction form
    73,191.60/109,787.40 = 71,791.92/x
  3. Step 3: Cross multiply
    73,191.60x = 109,787.40 × 71,791.92
  4. Step 4: Simplify right side
    73,191.60x = 7,881,848,237.81
  5. Step 5: Solve for x
    x = 7,881,848,237.81/73,191.60
  6. Step 6: Final answer
    x = 107,687.88

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