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Finding the Third Proportional to 108,186 and 166,391

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Solution

The third proportional to 108,186 and 166,391 is: 255,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,186 : 166,391 = 166,391 : x
  2. Step 2: Convert to fraction form
    108,186/166,391 = 166,391/x
  3. Step 3: Cross multiply
    108,186x = 166,391 × 166,391
  4. Step 4: Simplify right side
    108,186x = 27,685,964,881
  5. Step 5: Solve for x
    x = 27,685,964,881/108,186
  6. Step 6: Final answer
    x = 255,910.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.