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Finding the Third Proportional to 106,874 and 166,781

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Solution

The third proportional to 106,874 and 166,781 is: 260,268.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,874 : 166,781 = 166,781 : x
  2. Step 2: Convert to fraction form
    106,874/166,781 = 166,781/x
  3. Step 3: Cross multiply
    106,874x = 166,781 × 166,781
  4. Step 4: Simplify right side
    106,874x = 27,815,901,961
  5. Step 5: Solve for x
    x = 27,815,901,961/106,874
  6. Step 6: Final answer
    x = 260,268.18

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.