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Finding the Third Proportional to 161,331 and 250,625

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Solution

The third proportional to 161,331 and 250,625 is: 389,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,331 : 250,625 = 250,625 : x
  2. Step 2: Convert to fraction form
    161,331/250,625 = 250,625/x
  3. Step 3: Cross multiply
    161,331x = 250,625 × 250,625
  4. Step 4: Simplify right side
    161,331x = 62,812,890,625
  5. Step 5: Solve for x
    x = 62,812,890,625/161,331
  6. Step 6: Final answer
    x = 389,341.73

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.