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Finding the Fourth Proportional to 73,667.54, 110,481.09 and 20,346.77

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Solution

The fourth proportional to 73,667.54, 110,481.09 and 20,346.77 is: 30,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,667.54 : 110,481.09 = 20,346.77 : x
  2. Step 2: Convert to fraction form
    73,667.54/110,481.09 = 20,346.77/x
  3. Step 3: Cross multiply
    73,667.54x = 110,481.09 × 20,346.77
  4. Step 4: Simplify right side
    73,667.54x = 2,247,932,949.64
  5. Step 5: Solve for x
    x = 2,247,932,949.64/73,667.54
  6. Step 6: Final answer
    x = 30,514.57

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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.