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Finding the Third Proportional to 71,373 and 155,460

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Solution

The third proportional to 71,373 and 155,460 is: 338,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,373 : 155,460 = 155,460 : x
  2. Step 2: Convert to fraction form
    71,373/155,460 = 155,460/x
  3. Step 3: Cross multiply
    71,373x = 155,460 × 155,460
  4. Step 4: Simplify right side
    71,373x = 24,167,811,600
  5. Step 5: Solve for x
    x = 24,167,811,600/71,373
  6. Step 6: Final answer
    x = 338,612.80

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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.