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Finding the Third Proportional to 84,456 and 185,679

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Solution

The third proportional to 84,456 and 185,679 is: 408,220.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,456 : 185,679 = 185,679 : x
  2. Step 2: Convert to fraction form
    84,456/185,679 = 185,679/x
  3. Step 3: Cross multiply
    84,456x = 185,679 × 185,679
  4. Step 4: Simplify right side
    84,456x = 34,476,691,041
  5. Step 5: Solve for x
    x = 34,476,691,041/84,456
  6. Step 6: Final answer
    x = 408,220.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.