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Finding the Third Proportional to 71,517 and 157,036

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Solution

The third proportional to 71,517 and 157,036 is: 344,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,517 : 157,036 = 157,036 : x
  2. Step 2: Convert to fraction form
    71,517/157,036 = 157,036/x
  3. Step 3: Cross multiply
    71,517x = 157,036 × 157,036
  4. Step 4: Simplify right side
    71,517x = 24,660,305,296
  5. Step 5: Solve for x
    x = 24,660,305,296/71,517
  6. Step 6: Final answer
    x = 344,817.39

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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.