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Finding the Fourth Proportional to 100,027.28, 150,025.80 and 29,912.60

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Solution

The fourth proportional to 100,027.28, 150,025.80 and 29,912.60 is: 44,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,027.28 : 150,025.80 = 29,912.60 : x
  2. Step 2: Convert to fraction form
    100,027.28/150,025.80 = 29,912.60/x
  3. Step 3: Cross multiply
    100,027.28x = 150,025.80 × 29,912.60
  4. Step 4: Simplify right side
    100,027.28x = 4,487,661,745.08
  5. Step 5: Solve for x
    x = 4,487,661,745.08/100,027.28
  6. Step 6: Final answer
    x = 44,864.38

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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.