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Finding the Third Proportional to 90,910.13 and 198,343.13

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Solution

The third proportional to 90,910.13 and 198,343.13 is: 432,735.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,910.13 : 198,343.13 = 198,343.13 : x
  2. Step 2: Convert to fraction form
    90,910.13/198,343.13 = 198,343.13/x
  3. Step 3: Cross multiply
    90,910.13x = 198,343.13 × 198,343.13
  4. Step 4: Simplify right side
    90,910.13x = 39,339,995,234.77
  5. Step 5: Solve for x
    x = 39,339,995,234.77/90,910.13
  6. Step 6: Final answer
    x = 432,735.03

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.