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Finding the Third Proportional to 165,744 and 253,432

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Solution

The third proportional to 165,744 and 253,432 is: 387,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,744 : 253,432 = 253,432 : x
  2. Step 2: Convert to fraction form
    165,744/253,432 = 253,432/x
  3. Step 3: Cross multiply
    165,744x = 253,432 × 253,432
  4. Step 4: Simplify right side
    165,744x = 64,227,778,624
  5. Step 5: Solve for x
    x = 64,227,778,624/165,744
  6. Step 6: Final answer
    x = 387,511.94

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.