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Finding the Fourth Proportional to 132,128.88, 198,248.85 and 82,250.70

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Solution

The fourth proportional to 132,128.88, 198,248.85 and 82,250.70 is: 123,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.88 : 198,248.85 = 82,250.70 : x
  2. Step 2: Convert to fraction form
    132,128.88/198,248.85 = 82,250.70/x
  3. Step 3: Cross multiply
    132,128.88x = 198,248.85 × 82,250.70
  4. Step 4: Simplify right side
    132,128.88x = 16,306,106,686.70
  5. Step 5: Solve for x
    x = 16,306,106,686.70/132,128.88
  6. Step 6: Final answer
    x = 123,410.62

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