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Finding the Third Proportional to 126,790 and 271,574

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Solution

The third proportional to 126,790 and 271,574 is: 581,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,790 : 271,574 = 271,574 : x
  2. Step 2: Convert to fraction form
    126,790/271,574 = 271,574/x
  3. Step 3: Cross multiply
    126,790x = 271,574 × 271,574
  4. Step 4: Simplify right side
    126,790x = 73,752,437,476
  5. Step 5: Solve for x
    x = 73,752,437,476/126,790
  6. Step 6: Final answer
    x = 581,689.70

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.