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Finding the Fourth Proportional to 124,126.96, 171,294.42 and 67,538.56

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Solution

The fourth proportional to 124,126.96, 171,294.42 and 67,538.56 is: 93,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,126.96 : 171,294.42 = 67,538.56 : x
  2. Step 2: Convert to fraction form
    124,126.96/171,294.42 = 67,538.56/x
  3. Step 3: Cross multiply
    124,126.96x = 171,294.42 × 67,538.56
  4. Step 4: Simplify right side
    124,126.96x = 11,568,978,462.84
  5. Step 5: Solve for x
    x = 11,568,978,462.84/124,126.96
  6. Step 6: Final answer
    x = 93,202.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.