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Finding the Third Proportional to 178,234.75 and 396,317

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Solution

The third proportional to 178,234.75 and 396,317 is: 881,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,234.75 : 396,317 = 396,317 : x
  2. Step 2: Convert to fraction form
    178,234.75/396,317 = 396,317/x
  3. Step 3: Cross multiply
    178,234.75x = 396,317 × 396,317
  4. Step 4: Simplify right side
    178,234.75x = 157,067,164,489
  5. Step 5: Solve for x
    x = 157,067,164,489/178,234.75
  6. Step 6: Final answer
    x = 881,237.61

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.