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Finding the Third Proportional to 77,721 and 167,694

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Solution

The third proportional to 77,721 and 167,694 is: 361,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,721 : 167,694 = 167,694 : x
  2. Step 2: Convert to fraction form
    77,721/167,694 = 167,694/x
  3. Step 3: Cross multiply
    77,721x = 167,694 × 167,694
  4. Step 4: Simplify right side
    77,721x = 28,121,277,636
  5. Step 5: Solve for x
    x = 28,121,277,636/77,721
  6. Step 6: Final answer
    x = 361,823.41

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.