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Finding the Third Proportional to 41,790 and 91,198

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Solution

The third proportional to 41,790 and 91,198 is: 199,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,790 : 91,198 = 91,198 : x
  2. Step 2: Convert to fraction form
    41,790/91,198 = 91,198/x
  3. Step 3: Cross multiply
    41,790x = 91,198 × 91,198
  4. Step 4: Simplify right side
    41,790x = 8,317,075,204
  5. Step 5: Solve for x
    x = 8,317,075,204/41,790
  6. Step 6: Final answer
    x = 199,020.70

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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.