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Finding the Third Proportional to 174,432 and 261,864

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Solution

The third proportional to 174,432 and 261,864 is: 393,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,432 : 261,864 = 261,864 : x
  2. Step 2: Convert to fraction form
    174,432/261,864 = 261,864/x
  3. Step 3: Cross multiply
    174,432x = 261,864 × 261,864
  4. Step 4: Simplify right side
    174,432x = 68,572,754,496
  5. Step 5: Solve for x
    x = 68,572,754,496/174,432
  6. Step 6: Final answer
    x = 393,120.27

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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.