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Finding the Fourth Proportional to 67,888.72, 101,832.96 and 38,293.12

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Solution

The fourth proportional to 67,888.72, 101,832.96 and 38,293.12 is: 57,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,888.72 : 101,832.96 = 38,293.12 : x
  2. Step 2: Convert to fraction form
    67,888.72/101,832.96 = 38,293.12/x
  3. Step 3: Cross multiply
    67,888.72x = 101,832.96 × 38,293.12
  4. Step 4: Simplify right side
    67,888.72x = 3,899,501,757.24
  5. Step 5: Solve for x
    x = 3,899,501,757.24/67,888.72
  6. Step 6: Final answer
    x = 57,439.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.