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Finding the Fourth Proportional to 100,589.80, 150,884.70 and 50,650.60

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Solution

The fourth proportional to 100,589.80, 150,884.70 and 50,650.60 is: 75,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,589.80 : 150,884.70 = 50,650.60 : x
  2. Step 2: Convert to fraction form
    100,589.80/150,884.70 = 50,650.60/x
  3. Step 3: Cross multiply
    100,589.80x = 150,884.70 × 50,650.60
  4. Step 4: Simplify right side
    100,589.80x = 7,642,400,585.82
  5. Step 5: Solve for x
    x = 7,642,400,585.82/100,589.80
  6. Step 6: Final answer
    x = 75,975.90

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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.