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Finding the Fourth Proportional to 100,627.20, 150,919.20 and 44,467.20

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Solution

The fourth proportional to 100,627.20, 150,919.20 and 44,467.20 is: 66,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,627.20 : 150,919.20 = 44,467.20 : x
  2. Step 2: Convert to fraction form
    100,627.20/150,919.20 = 44,467.20/x
  3. Step 3: Cross multiply
    100,627.20x = 150,919.20 × 44,467.20
  4. Step 4: Simplify right side
    100,627.20x = 6,710,954,250.24
  5. Step 5: Solve for x
    x = 6,710,954,250.24/100,627.20
  6. Step 6: Final answer
    x = 66,691.25

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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.