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Finding the Third Proportional to 80,859.75 and 126,210.75

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Solution

The third proportional to 80,859.75 and 126,210.75 is: 196,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,859.75 : 126,210.75 = 126,210.75 : x
  2. Step 2: Convert to fraction form
    80,859.75/126,210.75 = 126,210.75/x
  3. Step 3: Cross multiply
    80,859.75x = 126,210.75 × 126,210.75
  4. Step 4: Simplify right side
    80,859.75x = 15,929,153,415.56
  5. Step 5: Solve for x
    x = 15,929,153,415.56/80,859.75
  6. Step 6: Final answer
    x = 196,997.31

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.