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Finding the Fourth Proportional to 137,378.52, 206,099.15 and 53,138.97

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Solution

The fourth proportional to 137,378.52, 206,099.15 and 53,138.97 is: 79,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,378.52 : 206,099.15 = 53,138.97 : x
  2. Step 2: Convert to fraction form
    137,378.52/206,099.15 = 53,138.97/x
  3. Step 3: Cross multiply
    137,378.52x = 206,099.15 × 53,138.97
  4. Step 4: Simplify right side
    137,378.52x = 10,951,896,283.18
  5. Step 5: Solve for x
    x = 10,951,896,283.18/137,378.52
  6. Step 6: Final answer
    x = 79,720.59

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