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Finding the Fourth Proportional to 80,645,195.80, 120,967,793.74 and 80,645,195.80

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Solution

The fourth proportional to 80,645,195.80, 120,967,793.74 and 80,645,195.80 is: 120,967,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,645,195.80 : 120,967,793.74 = 80,645,195.80 : x
  2. Step 2: Convert to fraction form
    80,645,195.80/120,967,793.74 = 80,645,195.80/x
  3. Step 3: Cross multiply
    80,645,195.80x = 120,967,793.74 × 80,645,195.80
  4. Step 4: Simplify right side
    80,645,195.80x = 9,755,471,411,656,314
  5. Step 5: Solve for x
    x = 9,755,471,411,656,314/80,645,195.80
  6. Step 6: Final answer
    x = 120,967,793.74

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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.