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Finding the Third Proportional to 71,969,612 and 156,717,782

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Solution

The third proportional to 71,969,612 and 156,717,782 is: 341,261,575.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,969,612 : 156,717,782 = 156,717,782 : x
  2. Step 2: Convert to fraction form
    71,969,612/156,717,782 = 156,717,782/x
  3. Step 3: Cross multiply
    71,969,612x = 156,717,782 × 156,717,782
  4. Step 4: Simplify right side
    71,969,612x = 24,560,463,194,999,524
  5. Step 5: Solve for x
    x = 24,560,463,194,999,524/71,969,612
  6. Step 6: Final answer
    x = 341,261,575.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.