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Finding the Fourth Proportional to 143,991.83, 215,979.67 and 44,151.75

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Solution

The fourth proportional to 143,991.83, 215,979.67 and 44,151.75 is: 66,225.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,991.83 : 215,979.67 = 44,151.75 : x
  2. Step 2: Convert to fraction form
    143,991.83/215,979.67 = 44,151.75/x
  3. Step 3: Cross multiply
    143,991.83x = 215,979.67 × 44,151.75
  4. Step 4: Simplify right side
    143,991.83x = 9,535,879,290.59
  5. Step 5: Solve for x
    x = 9,535,879,290.59/143,991.83
  6. Step 6: Final answer
    x = 66,225.14

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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.