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Finding the Fourth Proportional to 74,563.92, 111,884.76 and 30,223.44

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Solution

The fourth proportional to 74,563.92, 111,884.76 and 30,223.44 is: 45,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,563.92 : 111,884.76 = 30,223.44 : x
  2. Step 2: Convert to fraction form
    74,563.92/111,884.76 = 30,223.44/x
  3. Step 3: Cross multiply
    74,563.92x = 111,884.76 × 30,223.44
  4. Step 4: Simplify right side
    74,563.92x = 3,381,542,330.77
  5. Step 5: Solve for x
    x = 3,381,542,330.77/74,563.92
  6. Step 6: Final answer
    x = 45,350.92

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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.