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Finding the Fourth Proportional to 71,958.38, 107,797.30 and 43,808.60

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Solution

The fourth proportional to 71,958.38, 107,797.30 and 43,808.60 is: 65,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,958.38 : 107,797.30 = 43,808.60 : x
  2. Step 2: Convert to fraction form
    71,958.38/107,797.30 = 43,808.60/x
  3. Step 3: Cross multiply
    71,958.38x = 107,797.30 × 43,808.60
  4. Step 4: Simplify right side
    71,958.38x = 4,722,448,956.75
  5. Step 5: Solve for x
    x = 4,722,448,956.75/71,958.38
  6. Step 6: Final answer
    x = 65,627.51

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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.