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Finding the Third Proportional to 92,281 and 138,422

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Solution

The third proportional to 92,281 and 138,422 is: 207,633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,281 : 138,422 = 138,422 : x
  2. Step 2: Convert to fraction form
    92,281/138,422 = 138,422/x
  3. Step 3: Cross multiply
    92,281x = 138,422 × 138,422
  4. Step 4: Simplify right side
    92,281x = 19,160,650,084
  5. Step 5: Solve for x
    x = 19,160,650,084/92,281
  6. Step 6: Final answer
    x = 207,633.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.