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Finding the Third Proportional to 57,042 and 125,140

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Solution

The third proportional to 57,042 and 125,140 is: 274,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,042 : 125,140 = 125,140 : x
  2. Step 2: Convert to fraction form
    57,042/125,140 = 125,140/x
  3. Step 3: Cross multiply
    57,042x = 125,140 × 125,140
  4. Step 4: Simplify right side
    57,042x = 15,660,019,600
  5. Step 5: Solve for x
    x = 15,660,019,600/57,042
  6. Step 6: Final answer
    x = 274,534.90

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.