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Finding the Fourth Proportional to 143,794.88, 215,701.50 and 43,958.60

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Solution

The fourth proportional to 143,794.88, 215,701.50 and 43,958.60 is: 65,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,794.88 : 215,701.50 = 43,958.60 : x
  2. Step 2: Convert to fraction form
    143,794.88/215,701.50 = 43,958.60/x
  3. Step 3: Cross multiply
    143,794.88x = 215,701.50 × 43,958.60
  4. Step 4: Simplify right side
    143,794.88x = 9,481,935,957.90
  5. Step 5: Solve for x
    x = 9,481,935,957.90/143,794.88
  6. Step 6: Final answer
    x = 65,940.71

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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.