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Finding the Third Proportional to 122,863.50 and 252,486

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Solution

The third proportional to 122,863.50 and 252,486 is: 518,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,863.50 : 252,486 = 252,486 : x
  2. Step 2: Convert to fraction form
    122,863.50/252,486 = 252,486/x
  3. Step 3: Cross multiply
    122,863.50x = 252,486 × 252,486
  4. Step 4: Simplify right side
    122,863.50x = 63,749,180,196
  5. Step 5: Solve for x
    x = 63,749,180,196/122,863.50
  6. Step 6: Final answer
    x = 518,861.83

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.