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Finding the Fourth Proportional to 99,546.80, 148,888.20 and 89,092.40

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Solution

The fourth proportional to 99,546.80, 148,888.20 and 89,092.40 is: 133,251.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,546.80 : 148,888.20 = 89,092.40 : x
  2. Step 2: Convert to fraction form
    99,546.80/148,888.20 = 89,092.40/x
  3. Step 3: Cross multiply
    99,546.80x = 148,888.20 × 89,092.40
  4. Step 4: Simplify right side
    99,546.80x = 13,264,807,069.68
  5. Step 5: Solve for x
    x = 13,264,807,069.68/99,546.80
  6. Step 6: Final answer
    x = 133,251.97

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