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Finding the Third Proportional to 126,730 and 196,161.75

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Solution

The third proportional to 126,730 and 196,161.75 is: 303,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,730 : 196,161.75 = 196,161.75 : x
  2. Step 2: Convert to fraction form
    126,730/196,161.75 = 196,161.75/x
  3. Step 3: Cross multiply
    126,730x = 196,161.75 × 196,161.75
  4. Step 4: Simplify right side
    126,730x = 38,479,432,163.06
  5. Step 5: Solve for x
    x = 38,479,432,163.06/126,730
  6. Step 6: Final answer
    x = 303,633.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.