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Finding the Third Proportional to 86,331 and 131,298

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Solution

The third proportional to 86,331 and 131,298 is: 199,686.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,331 : 131,298 = 131,298 : x
  2. Step 2: Convert to fraction form
    86,331/131,298 = 131,298/x
  3. Step 3: Cross multiply
    86,331x = 131,298 × 131,298
  4. Step 4: Simplify right side
    86,331x = 17,239,164,804
  5. Step 5: Solve for x
    x = 17,239,164,804/86,331
  6. Step 6: Final answer
    x = 199,686.84

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.