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Finding the Fourth Proportional to 198,660.20, 297,731.10 and 80,234.60

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Solution

The fourth proportional to 198,660.20, 297,731.10 and 80,234.60 is: 120,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,660.20 : 297,731.10 = 80,234.60 : x
  2. Step 2: Convert to fraction form
    198,660.20/297,731.10 = 80,234.60/x
  3. Step 3: Cross multiply
    198,660.20x = 297,731.10 × 80,234.60
  4. Step 4: Simplify right side
    198,660.20x = 23,888,335,716.06
  5. Step 5: Solve for x
    x = 23,888,335,716.06/198,660.20
  6. Step 6: Final answer
    x = 120,247.21

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