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Finding the Fourth Proportional to 100,579.24, 150,639.20 and 48,025.64

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Solution

The fourth proportional to 100,579.24, 150,639.20 and 48,025.64 is: 71,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,579.24 : 150,639.20 = 48,025.64 : x
  2. Step 2: Convert to fraction form
    100,579.24/150,639.20 = 48,025.64/x
  3. Step 3: Cross multiply
    100,579.24x = 150,639.20 × 48,025.64
  4. Step 4: Simplify right side
    100,579.24x = 7,234,543,989.09
  5. Step 5: Solve for x
    x = 7,234,543,989.09/100,579.24
  6. Step 6: Final answer
    x = 71,928.80

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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.