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Finding the Third Proportional to 71,392 and 155,496

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Solution

The third proportional to 71,392 and 155,496 is: 338,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,392 : 155,496 = 155,496 : x
  2. Step 2: Convert to fraction form
    71,392/155,496 = 155,496/x
  3. Step 3: Cross multiply
    71,392x = 155,496 × 155,496
  4. Step 4: Simplify right side
    71,392x = 24,179,006,016
  5. Step 5: Solve for x
    x = 24,179,006,016/71,392
  6. Step 6: Final answer
    x = 338,679.49

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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.