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Finding the Third Proportional to 79,111.75 and 161,161

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Solution

The third proportional to 79,111.75 and 161,161 is: 328,306.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,111.75 : 161,161 = 161,161 : x
  2. Step 2: Convert to fraction form
    79,111.75/161,161 = 161,161/x
  3. Step 3: Cross multiply
    79,111.75x = 161,161 × 161,161
  4. Step 4: Simplify right side
    79,111.75x = 25,972,867,921
  5. Step 5: Solve for x
    x = 25,972,867,921/79,111.75
  6. Step 6: Final answer
    x = 328,306.07

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.