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Finding the Fourth Proportional to 143,907.99, 215,862.51 and 44,067.78

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Solution

The fourth proportional to 143,907.99, 215,862.51 and 44,067.78 is: 66,101.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,907.99 : 215,862.51 = 44,067.78 : x
  2. Step 2: Convert to fraction form
    143,907.99/215,862.51 = 44,067.78/x
  3. Step 3: Cross multiply
    143,907.99x = 215,862.51 × 44,067.78
  4. Step 4: Simplify right side
    143,907.99x = 9,512,581,600.93
  5. Step 5: Solve for x
    x = 9,512,581,600.93/143,907.99
  6. Step 6: Final answer
    x = 66,101.83

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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.