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Finding the Fourth Proportional to 123,229.20, 184,930.20 and 78,963.60

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Solution

The fourth proportional to 123,229.20, 184,930.20 and 78,963.60 is: 118,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,229.20 : 184,930.20 = 78,963.60 : x
  2. Step 2: Convert to fraction form
    123,229.20/184,930.20 = 78,963.60/x
  3. Step 3: Cross multiply
    123,229.20x = 184,930.20 × 78,963.60
  4. Step 4: Simplify right side
    123,229.20x = 14,602,754,340.72
  5. Step 5: Solve for x
    x = 14,602,754,340.72/123,229.20
  6. Step 6: Final answer
    x = 118,500.76

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