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Finding the Fourth Proportional to 87,606,876.80, 131,410,315.20 and 87,606,876.80

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Solution

The fourth proportional to 87,606,876.80, 131,410,315.20 and 87,606,876.80 is: 131,410,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,606,876.80 : 131,410,315.20 = 87,606,876.80 : x
  2. Step 2: Convert to fraction form
    87,606,876.80/131,410,315.20 = 87,606,876.80/x
  3. Step 3: Cross multiply
    87,606,876.80x = 131,410,315.20 × 87,606,876.80
  4. Step 4: Simplify right side
    87,606,876.80x = 11,512,447,293,975,568
  5. Step 5: Solve for x
    x = 11,512,447,293,975,568/87,606,876.80
  6. Step 6: Final answer
    x = 131,410,315.20

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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.