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Finding the Third Proportional to 168,864 and 267,390

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Solution

The third proportional to 168,864 and 267,390 is: 423,402.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,864 : 267,390 = 267,390 : x
  2. Step 2: Convert to fraction form
    168,864/267,390 = 267,390/x
  3. Step 3: Cross multiply
    168,864x = 267,390 × 267,390
  4. Step 4: Simplify right side
    168,864x = 71,497,412,100
  5. Step 5: Solve for x
    x = 71,497,412,100/168,864
  6. Step 6: Final answer
    x = 423,402.34

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.