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Finding the Third Proportional to 166,581.75 and 256,245

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Solution

The third proportional to 166,581.75 and 256,245 is: 394,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,581.75 : 256,245 = 256,245 : x
  2. Step 2: Convert to fraction form
    166,581.75/256,245 = 256,245/x
  3. Step 3: Cross multiply
    166,581.75x = 256,245 × 256,245
  4. Step 4: Simplify right side
    166,581.75x = 65,661,500,025
  5. Step 5: Solve for x
    x = 65,661,500,025/166,581.75
  6. Step 6: Final answer
    x = 394,169.83

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.