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Finding the Third Proportional to 168,440 and 253,344

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Solution

The third proportional to 168,440 and 253,344 is: 381,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,440 : 253,344 = 253,344 : x
  2. Step 2: Convert to fraction form
    168,440/253,344 = 253,344/x
  3. Step 3: Cross multiply
    168,440x = 253,344 × 253,344
  4. Step 4: Simplify right side
    168,440x = 64,183,182,336
  5. Step 5: Solve for x
    x = 64,183,182,336/168,440
  6. Step 6: Final answer
    x = 381,044.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.