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Finding the Third Proportional to 146,398 and 198,860

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Solution

The third proportional to 146,398 and 198,860 is: 270,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,398 : 198,860 = 198,860 : x
  2. Step 2: Convert to fraction form
    146,398/198,860 = 198,860/x
  3. Step 3: Cross multiply
    146,398x = 198,860 × 198,860
  4. Step 4: Simplify right side
    146,398x = 39,545,299,600
  5. Step 5: Solve for x
    x = 39,545,299,600/146,398
  6. Step 6: Final answer
    x = 270,121.86

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.