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Finding the Third Proportional to 91,917 and 193,110

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Solution

The third proportional to 91,917 and 193,110 is: 405,708.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,917 : 193,110 = 193,110 : x
  2. Step 2: Convert to fraction form
    91,917/193,110 = 193,110/x
  3. Step 3: Cross multiply
    91,917x = 193,110 × 193,110
  4. Step 4: Simplify right side
    91,917x = 37,291,472,100
  5. Step 5: Solve for x
    x = 37,291,472,100/91,917
  6. Step 6: Final answer
    x = 405,708.11

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.