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Finding the Third Proportional to 169,831 and 359,891

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Solution

The third proportional to 169,831 and 359,891 is: 762,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,831 : 359,891 = 359,891 : x
  2. Step 2: Convert to fraction form
    169,831/359,891 = 359,891/x
  3. Step 3: Cross multiply
    169,831x = 359,891 × 359,891
  4. Step 4: Simplify right side
    169,831x = 129,521,531,881
  5. Step 5: Solve for x
    x = 129,521,531,881/169,831
  6. Step 6: Final answer
    x = 762,649.53

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.