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Finding the Fourth Proportional to 82,951,394.80, 124,427,092.24 and 65,819,311.60

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Solution

The fourth proportional to 82,951,394.80, 124,427,092.24 and 65,819,311.60 is: 98,728,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,951,394.80 : 124,427,092.24 = 65,819,311.60 : x
  2. Step 2: Convert to fraction form
    82,951,394.80/124,427,092.24 = 65,819,311.60/x
  3. Step 3: Cross multiply
    82,951,394.80x = 124,427,092.24 × 65,819,311.60
  4. Step 4: Simplify right side
    82,951,394.80x = 8,189,705,555,626,502
  5. Step 5: Solve for x
    x = 8,189,705,555,626,502/82,951,394.80
  6. Step 6: Final answer
    x = 98,728,967.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.