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Finding the Third Proportional to 57,318 and 126,260

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Solution

The third proportional to 57,318 and 126,260 is: 278,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,318 : 126,260 = 126,260 : x
  2. Step 2: Convert to fraction form
    57,318/126,260 = 126,260/x
  3. Step 3: Cross multiply
    57,318x = 126,260 × 126,260
  4. Step 4: Simplify right side
    57,318x = 15,941,587,600
  5. Step 5: Solve for x
    x = 15,941,587,600/57,318
  6. Step 6: Final answer
    x = 278,125.33

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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.