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Finding the Third Proportional to 108,424 and 172,674

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Solution

The third proportional to 108,424 and 172,674 is: 274,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,424 : 172,674 = 172,674 : x
  2. Step 2: Convert to fraction form
    108,424/172,674 = 172,674/x
  3. Step 3: Cross multiply
    108,424x = 172,674 × 172,674
  4. Step 4: Simplify right side
    108,424x = 29,816,310,276
  5. Step 5: Solve for x
    x = 29,816,310,276/108,424
  6. Step 6: Final answer
    x = 274,997.33

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.