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Finding the Fourth Proportional to 87,687,069.60, 131,530,604.40 and 87,687,069.60

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Solution

The fourth proportional to 87,687,069.60, 131,530,604.40 and 87,687,069.60 is: 131,530,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687,069.60 : 131,530,604.40 = 87,687,069.60 : x
  2. Step 2: Convert to fraction form
    87,687,069.60/131,530,604.40 = 87,687,069.60/x
  3. Step 3: Cross multiply
    87,687,069.60x = 131,530,604.40 × 87,687,069.60
  4. Step 4: Simplify right side
    87,687,069.60x = 11,533,533,262,552,866
  5. Step 5: Solve for x
    x = 11,533,533,262,552,866/87,687,069.60
  6. Step 6: Final answer
    x = 131,530,604.40

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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.