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Finding the Fourth Proportional to 143,919.62, 215,879.97 and 44,079.42

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Solution

The fourth proportional to 143,919.62, 215,879.97 and 44,079.42 is: 66,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,919.62 : 215,879.97 = 44,079.42 : x
  2. Step 2: Convert to fraction form
    143,919.62/215,879.97 = 44,079.42/x
  3. Step 3: Cross multiply
    143,919.62x = 215,879.97 × 44,079.42
  4. Step 4: Simplify right side
    143,919.62x = 9,515,863,867.22
  5. Step 5: Solve for x
    x = 9,515,863,867.22/143,919.62
  6. Step 6: Final answer
    x = 66,119.30

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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.