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Finding the Third Proportional to 100,449 and 136,422

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Solution

The third proportional to 100,449 and 136,422 is: 185,277.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,449 : 136,422 = 136,422 : x
  2. Step 2: Convert to fraction form
    100,449/136,422 = 136,422/x
  3. Step 3: Cross multiply
    100,449x = 136,422 × 136,422
  4. Step 4: Simplify right side
    100,449x = 18,610,962,084
  5. Step 5: Solve for x
    x = 18,610,962,084/100,449
  6. Step 6: Final answer
    x = 185,277.72

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.