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Finding the Third Proportional to 71,528 and 157,060

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Solution

The third proportional to 71,528 and 157,060 is: 344,869.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,528 : 157,060 = 157,060 : x
  2. Step 2: Convert to fraction form
    71,528/157,060 = 157,060/x
  3. Step 3: Cross multiply
    71,528x = 157,060 × 157,060
  4. Step 4: Simplify right side
    71,528x = 24,667,843,600
  5. Step 5: Solve for x
    x = 24,667,843,600/71,528
  6. Step 6: Final answer
    x = 344,869.75

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.