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Finding the Fourth Proportional to 87,571,310.40, 131,356,965.60 and 87,571,310.40

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Solution

The fourth proportional to 87,571,310.40, 131,356,965.60 and 87,571,310.40 is: 131,356,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,571,310.40 : 131,356,965.60 = 87,571,310.40 : x
  2. Step 2: Convert to fraction form
    87,571,310.40/131,356,965.60 = 87,571,310.40/x
  3. Step 3: Cross multiply
    87,571,310.40x = 131,356,965.60 × 87,571,310.40
  4. Step 4: Simplify right side
    87,571,310.40x = 11,503,101,607,759,722
  5. Step 5: Solve for x
    x = 11,503,101,607,759,722/87,571,310.40
  6. Step 6: Final answer
    x = 131,356,965.60

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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.