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Finding the Fourth Proportional to 57,975.20, 87,027.60 and 44,885.60

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Solution

The fourth proportional to 57,975.20, 87,027.60 and 44,885.60 is: 67,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,975.20 : 87,027.60 = 44,885.60 : x
  2. Step 2: Convert to fraction form
    57,975.20/87,027.60 = 44,885.60/x
  3. Step 3: Cross multiply
    57,975.20x = 87,027.60 × 44,885.60
  4. Step 4: Simplify right side
    57,975.20x = 3,906,286,042.56
  5. Step 5: Solve for x
    x = 3,906,286,042.56/57,975.20
  6. Step 6: Final answer
    x = 67,378.57

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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.