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Finding the Third Proportional to 57,712 and 124,416

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Solution

The third proportional to 57,712 and 124,416 is: 268,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712 : 124,416 = 124,416 : x
  2. Step 2: Convert to fraction form
    57,712/124,416 = 124,416/x
  3. Step 3: Cross multiply
    57,712x = 124,416 × 124,416
  4. Step 4: Simplify right side
    57,712x = 15,479,341,056
  5. Step 5: Solve for x
    x = 15,479,341,056/57,712
  6. Step 6: Final answer
    x = 268,217.03

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.