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Finding the Fourth Proportional to 87,399,530.90, 122,132,595.10 and 87,399,530.90

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Solution

The fourth proportional to 87,399,530.90, 122,132,595.10 and 87,399,530.90 is: 122,132,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,399,530.90 : 122,132,595.10 = 87,399,530.90 : x
  2. Step 2: Convert to fraction form
    87,399,530.90/122,132,595.10 = 87,399,530.90/x
  3. Step 3: Cross multiply
    87,399,530.90x = 122,132,595.10 × 87,399,530.90
  4. Step 4: Simplify right side
    87,399,530.90x = 10,674,331,519,339,638
  5. Step 5: Solve for x
    x = 10,674,331,519,339,638/87,399,530.90
  6. Step 6: Final answer
    x = 122,132,595.10

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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.