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Finding the Third Proportional to 83,938.50 and 126,717.50

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Solution

The third proportional to 83,938.50 and 126,717.50 is: 191,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,938.50 : 126,717.50 = 126,717.50 : x
  2. Step 2: Convert to fraction form
    83,938.50/126,717.50 = 126,717.50/x
  3. Step 3: Cross multiply
    83,938.50x = 126,717.50 × 126,717.50
  4. Step 4: Simplify right side
    83,938.50x = 16,057,324,806.25
  5. Step 5: Solve for x
    x = 16,057,324,806.25/83,938.50
  6. Step 6: Final answer
    x = 191,298.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.