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Finding the Third Proportional to 75,708 and 161,127

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Solution

The third proportional to 75,708 and 161,127 is: 342,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,708 : 161,127 = 161,127 : x
  2. Step 2: Convert to fraction form
    75,708/161,127 = 161,127/x
  3. Step 3: Cross multiply
    75,708x = 161,127 × 161,127
  4. Step 4: Simplify right side
    75,708x = 25,961,910,129
  5. Step 5: Solve for x
    x = 25,961,910,129/75,708
  6. Step 6: Final answer
    x = 342,921.62

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.