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Finding the Third Proportional to 80,491 and 174,811

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Solution

The third proportional to 80,491 and 174,811 is: 379,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,491 : 174,811 = 174,811 : x
  2. Step 2: Convert to fraction form
    80,491/174,811 = 174,811/x
  3. Step 3: Cross multiply
    80,491x = 174,811 × 174,811
  4. Step 4: Simplify right side
    80,491x = 30,558,885,721
  5. Step 5: Solve for x
    x = 30,558,885,721/80,491
  6. Step 6: Final answer
    x = 379,655.93

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.