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Finding the Third Proportional to 87,280 and 191,552

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Solution

The third proportional to 87,280 and 191,552 is: 420,396.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,280 : 191,552 = 191,552 : x
  2. Step 2: Convert to fraction form
    87,280/191,552 = 191,552/x
  3. Step 3: Cross multiply
    87,280x = 191,552 × 191,552
  4. Step 4: Simplify right side
    87,280x = 36,692,168,704
  5. Step 5: Solve for x
    x = 36,692,168,704/87,280
  6. Step 6: Final answer
    x = 420,396.07

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.