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Finding the Third Proportional to 85,466 and 187,021

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Solution

The third proportional to 85,466 and 187,021 is: 409,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,466 : 187,021 = 187,021 : x
  2. Step 2: Convert to fraction form
    85,466/187,021 = 187,021/x
  3. Step 3: Cross multiply
    85,466x = 187,021 × 187,021
  4. Step 4: Simplify right side
    85,466x = 34,976,854,441
  5. Step 5: Solve for x
    x = 34,976,854,441/85,466
  6. Step 6: Final answer
    x = 409,248.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.