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Finding the Fourth Proportional to 100,405.87, 150,609.26 and 33,846.55

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Solution

The fourth proportional to 100,405.87, 150,609.26 and 33,846.55 is: 50,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,405.87 : 150,609.26 = 33,846.55 : x
  2. Step 2: Convert to fraction form
    100,405.87/150,609.26 = 33,846.55/x
  3. Step 3: Cross multiply
    100,405.87x = 150,609.26 × 33,846.55
  4. Step 4: Simplify right side
    100,405.87x = 5,097,603,849.05
  5. Step 5: Solve for x
    x = 5,097,603,849.05/100,405.87
  6. Step 6: Final answer
    x = 50,769.98

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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.