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Finding the Fourth Proportional to 67,379.88, 100,938.48 and 41,019.24

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Solution

The fourth proportional to 67,379.88, 100,938.48 and 41,019.24 is: 61,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,379.88 : 100,938.48 = 41,019.24 : x
  2. Step 2: Convert to fraction form
    67,379.88/100,938.48 = 41,019.24/x
  3. Step 3: Cross multiply
    67,379.88x = 100,938.48 × 41,019.24
  4. Step 4: Simplify right side
    67,379.88x = 4,140,419,736.36
  5. Step 5: Solve for x
    x = 4,140,419,736.36/67,379.88
  6. Step 6: Final answer
    x = 61,448.90

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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.