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Finding the Fourth Proportional to 67,442.56, 101,163.77 and 20,057.46

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Solution

The fourth proportional to 67,442.56, 101,163.77 and 20,057.46 is: 30,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,442.56 : 101,163.77 = 20,057.46 : x
  2. Step 2: Convert to fraction form
    67,442.56/101,163.77 = 20,057.46/x
  3. Step 3: Cross multiply
    67,442.56x = 101,163.77 × 20,057.46
  4. Step 4: Simplify right side
    67,442.56x = 2,029,087,865.79
  5. Step 5: Solve for x
    x = 2,029,087,865.79/67,442.56
  6. Step 6: Final answer
    x = 30,086.16

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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.