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Finding the Fourth Proportional to 143,940.66, 215,941.97 and 44,107.75

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Solution

The fourth proportional to 143,940.66, 215,941.97 and 44,107.75 is: 66,171.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,940.66 : 215,941.97 = 44,107.75 : x
  2. Step 2: Convert to fraction form
    143,940.66/215,941.97 = 44,107.75/x
  3. Step 3: Cross multiply
    143,940.66x = 215,941.97 × 44,107.75
  4. Step 4: Simplify right side
    143,940.66x = 9,524,714,427.27
  5. Step 5: Solve for x
    x = 9,524,714,427.27/143,940.66
  6. Step 6: Final answer
    x = 66,171.12

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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.