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Finding the Third Proportional to 126,240 and 196,368

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Solution

The third proportional to 126,240 and 196,368 is: 305,453.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,240 : 196,368 = 196,368 : x
  2. Step 2: Convert to fraction form
    126,240/196,368 = 196,368/x
  3. Step 3: Cross multiply
    126,240x = 196,368 × 196,368
  4. Step 4: Simplify right side
    126,240x = 38,560,391,424
  5. Step 5: Solve for x
    x = 38,560,391,424/126,240
  6. Step 6: Final answer
    x = 305,453.04

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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.