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Finding the Third Proportional to 83,479.50 and 127,986.75

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Solution

The third proportional to 83,479.50 and 127,986.75 is: 196,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,479.50 : 127,986.75 = 127,986.75 : x
  2. Step 2: Convert to fraction form
    83,479.50/127,986.75 = 127,986.75/x
  3. Step 3: Cross multiply
    83,479.50x = 127,986.75 × 127,986.75
  4. Step 4: Simplify right side
    83,479.50x = 16,380,608,175.56
  5. Step 5: Solve for x
    x = 16,380,608,175.56/83,479.50
  6. Step 6: Final answer
    x = 196,223.12

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.