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Finding the Third Proportional to 91,163 and 198,775

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Solution

The third proportional to 91,163 and 198,775 is: 433,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,163 : 198,775 = 198,775 : x
  2. Step 2: Convert to fraction form
    91,163/198,775 = 198,775/x
  3. Step 3: Cross multiply
    91,163x = 198,775 × 198,775
  4. Step 4: Simplify right side
    91,163x = 39,511,500,625
  5. Step 5: Solve for x
    x = 39,511,500,625/91,163
  6. Step 6: Final answer
    x = 433,415.98

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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.