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Finding the Third Proportional to 167,212 and 338,744

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Solution

The third proportional to 167,212 and 338,744 is: 686,239.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,212 : 338,744 = 338,744 : x
  2. Step 2: Convert to fraction form
    167,212/338,744 = 338,744/x
  3. Step 3: Cross multiply
    167,212x = 338,744 × 338,744
  4. Step 4: Simplify right side
    167,212x = 114,747,497,536
  5. Step 5: Solve for x
    x = 114,747,497,536/167,212
  6. Step 6: Final answer
    x = 686,239.61

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.