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Finding the Third Proportional to 68,982.75 and 106,857

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Solution

The third proportional to 68,982.75 and 106,857 is: 165,525.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,982.75 : 106,857 = 106,857 : x
  2. Step 2: Convert to fraction form
    68,982.75/106,857 = 106,857/x
  3. Step 3: Cross multiply
    68,982.75x = 106,857 × 106,857
  4. Step 4: Simplify right side
    68,982.75x = 11,418,418,449
  5. Step 5: Solve for x
    x = 11,418,418,449/68,982.75
  6. Step 6: Final answer
    x = 165,525.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.