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Finding the Fourth Proportional to 100,049.41, 150,074.34 and 40,885.08

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Solution

The fourth proportional to 100,049.41, 150,074.34 and 40,885.08 is: 61,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,049.41 : 150,074.34 = 40,885.08 : x
  2. Step 2: Convert to fraction form
    100,049.41/150,074.34 = 40,885.08/x
  3. Step 3: Cross multiply
    100,049.41x = 150,074.34 × 40,885.08
  4. Step 4: Simplify right side
    100,049.41x = 6,135,801,396.85
  5. Step 5: Solve for x
    x = 6,135,801,396.85/100,049.41
  6. Step 6: Final answer
    x = 61,327.71

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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.