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Finding the Fourth Proportional to 100,399.20, 150,577.20 and 44,239.20

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Solution

The fourth proportional to 100,399.20, 150,577.20 and 44,239.20 is: 66,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,399.20 : 150,577.20 = 44,239.20 : x
  2. Step 2: Convert to fraction form
    100,399.20/150,577.20 = 44,239.20/x
  3. Step 3: Cross multiply
    100,399.20x = 150,577.20 × 44,239.20
  4. Step 4: Simplify right side
    100,399.20x = 6,661,414,866.24
  5. Step 5: Solve for x
    x = 6,661,414,866.24/100,399.20
  6. Step 6: Final answer
    x = 66,349.28

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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.