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Finding the Fourth Proportional to 143,858.40, 215,791.70 and 44,016.38

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Solution

The fourth proportional to 143,858.40, 215,791.70 and 44,016.38 is: 66,025.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,858.40 : 215,791.70 = 44,016.38 : x
  2. Step 2: Convert to fraction form
    143,858.40/215,791.70 = 44,016.38/x
  3. Step 3: Cross multiply
    143,858.40x = 215,791.70 × 44,016.38
  4. Step 4: Simplify right side
    143,858.40x = 9,498,369,468.05
  5. Step 5: Solve for x
    x = 9,498,369,468.05/143,858.40
  6. Step 6: Final answer
    x = 66,025.82

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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.