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Finding the Fourth Proportional to 72,691.95, 108,862.97 and 49,247.31

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Solution

The fourth proportional to 72,691.95, 108,862.97 and 49,247.31 is: 73,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,691.95 : 108,862.97 = 49,247.31 : x
  2. Step 2: Convert to fraction form
    72,691.95/108,862.97 = 49,247.31/x
  3. Step 3: Cross multiply
    72,691.95x = 108,862.97 × 49,247.31
  4. Step 4: Simplify right side
    72,691.95x = 5,361,208,184.87
  5. Step 5: Solve for x
    x = 5,361,208,184.87/72,691.95
  6. Step 6: Final answer
    x = 73,752.43

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