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Finding the Fourth Proportional to 100,363.70, 150,509.10 and 50,427.20

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Solution

The fourth proportional to 100,363.70, 150,509.10 and 50,427.20 is: 75,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,363.70 : 150,509.10 = 50,427.20 : x
  2. Step 2: Convert to fraction form
    100,363.70/150,509.10 = 50,427.20/x
  3. Step 3: Cross multiply
    100,363.70x = 150,509.10 × 50,427.20
  4. Step 4: Simplify right side
    100,363.70x = 7,589,752,487.52
  5. Step 5: Solve for x
    x = 7,589,752,487.52/100,363.70
  6. Step 6: Final answer
    x = 75,622.49

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1.5x scale

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.