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Finding the Third Proportional to 156,972 and 339,092

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Solution

The third proportional to 156,972 and 339,092 is: 732,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972 : 339,092 = 339,092 : x
  2. Step 2: Convert to fraction form
    156,972/339,092 = 339,092/x
  3. Step 3: Cross multiply
    156,972x = 339,092 × 339,092
  4. Step 4: Simplify right side
    156,972x = 114,983,384,464
  5. Step 5: Solve for x
    x = 114,983,384,464/156,972
  6. Step 6: Final answer
    x = 732,508.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.