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Finding the Fourth Proportional to 81,605,793.90, 114,399,276.90 and 81,605,793.90

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Solution

The fourth proportional to 81,605,793.90, 114,399,276.90 and 81,605,793.90 is: 114,399,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,605,793.90 : 114,399,276.90 = 81,605,793.90 : x
  2. Step 2: Convert to fraction form
    81,605,793.90/114,399,276.90 = 81,605,793.90/x
  3. Step 3: Cross multiply
    81,605,793.90x = 114,399,276.90 × 81,605,793.90
  4. Step 4: Simplify right side
    81,605,793.90x = 9,335,643,813,010,432
  5. Step 5: Solve for x
    x = 9,335,643,813,010,432/81,605,793.90
  6. Step 6: Final answer
    x = 114,399,276.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.