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Finding the Fourth Proportional to 73,552.42, 110,328.86 and 20,245.11

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Solution

The fourth proportional to 73,552.42, 110,328.86 and 20,245.11 is: 30,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,552.42 : 110,328.86 = 20,245.11 : x
  2. Step 2: Convert to fraction form
    73,552.42/110,328.86 = 20,245.11/x
  3. Step 3: Cross multiply
    73,552.42x = 110,328.86 × 20,245.11
  4. Step 4: Simplify right side
    73,552.42x = 2,233,619,906.87
  5. Step 5: Solve for x
    x = 2,233,619,906.87/73,552.42
  6. Step 6: Final answer
    x = 30,367.73

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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.