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Finding the Fourth Proportional to 78,862.52, 118,248.32 and 53,932.79

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Solution

The fourth proportional to 78,862.52, 118,248.32 and 53,932.79 is: 80,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,862.52 : 118,248.32 = 53,932.79 : x
  2. Step 2: Convert to fraction form
    78,862.52/118,248.32 = 53,932.79/x
  3. Step 3: Cross multiply
    78,862.52x = 118,248.32 × 53,932.79
  4. Step 4: Simplify right side
    78,862.52x = 6,377,460,949.51
  5. Step 5: Solve for x
    x = 6,377,460,949.51/78,862.52
  6. Step 6: Final answer
    x = 80,868.09

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