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Finding the Fourth Proportional to 74,161.87, 111,168.42 and 36,749.13

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Solution

The fourth proportional to 74,161.87, 111,168.42 and 36,749.13 is: 55,086.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,161.87 : 111,168.42 = 36,749.13 : x
  2. Step 2: Convert to fraction form
    74,161.87/111,168.42 = 36,749.13/x
  3. Step 3: Cross multiply
    74,161.87x = 111,168.42 × 36,749.13
  4. Step 4: Simplify right side
    74,161.87x = 4,085,342,163.78
  5. Step 5: Solve for x
    x = 4,085,342,163.78/74,161.87
  6. Step 6: Final answer
    x = 55,086.83

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1.5x scale

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.