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Finding the Third Proportional to 83,731 and 180,581

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Solution

The third proportional to 83,731 and 180,581 is: 389,455.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,731 : 180,581 = 180,581 : x
  2. Step 2: Convert to fraction form
    83,731/180,581 = 180,581/x
  3. Step 3: Cross multiply
    83,731x = 180,581 × 180,581
  4. Step 4: Simplify right side
    83,731x = 32,609,497,561
  5. Step 5: Solve for x
    x = 32,609,497,561/83,731
  6. Step 6: Final answer
    x = 389,455.49

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.