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Finding the Third Proportional to 175,446 and 272,160

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Solution

The third proportional to 175,446 and 272,160 is: 422,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,446 : 272,160 = 272,160 : x
  2. Step 2: Convert to fraction form
    175,446/272,160 = 272,160/x
  3. Step 3: Cross multiply
    175,446x = 272,160 × 272,160
  4. Step 4: Simplify right side
    175,446x = 74,071,065,600
  5. Step 5: Solve for x
    x = 74,071,065,600/175,446
  6. Step 6: Final answer
    x = 422,187.26

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.