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Finding the Fourth Proportional to 426,644.10, 639,793.35 and 146,016.90

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Solution

The fourth proportional to 426,644.10, 639,793.35 and 146,016.90 is: 218,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,644.10 : 639,793.35 = 146,016.90 : x
  2. Step 2: Convert to fraction form
    426,644.10/639,793.35 = 146,016.90/x
  3. Step 3: Cross multiply
    426,644.10x = 639,793.35 × 146,016.90
  4. Step 4: Simplify right side
    426,644.10x = 93,420,641,607.62
  5. Step 5: Solve for x
    x = 93,420,641,607.62/426,644.10
  6. Step 6: Final answer
    x = 218,966.21

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