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Finding the Third Proportional to 72,471 and 157,359

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Solution

The third proportional to 72,471 and 157,359 is: 341,679.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,471 : 157,359 = 157,359 : x
  2. Step 2: Convert to fraction form
    72,471/157,359 = 157,359/x
  3. Step 3: Cross multiply
    72,471x = 157,359 × 157,359
  4. Step 4: Simplify right side
    72,471x = 24,761,854,881
  5. Step 5: Solve for x
    x = 24,761,854,881/72,471
  6. Step 6: Final answer
    x = 341,679.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.