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Finding the Third Proportional to 168,704 and 261,120

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Solution

The third proportional to 168,704 and 261,120 is: 404,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,704 : 261,120 = 261,120 : x
  2. Step 2: Convert to fraction form
    168,704/261,120 = 261,120/x
  3. Step 3: Cross multiply
    168,704x = 261,120 × 261,120
  4. Step 4: Simplify right side
    168,704x = 68,183,654,400
  5. Step 5: Solve for x
    x = 68,183,654,400/168,704
  6. Step 6: Final answer
    x = 404,161.46

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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.