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Finding the Fourth Proportional to 57,963.20, 87,009.60 and 44,873.60

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Solution

The fourth proportional to 57,963.20, 87,009.60 and 44,873.60 is: 67,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,963.20 : 87,009.60 = 44,873.60 : x
  2. Step 2: Convert to fraction form
    57,963.20/87,009.60 = 44,873.60/x
  3. Step 3: Cross multiply
    57,963.20x = 87,009.60 × 44,873.60
  4. Step 4: Simplify right side
    57,963.20x = 3,904,433,986.56
  5. Step 5: Solve for x
    x = 3,904,433,986.56/57,963.20
  6. Step 6: Final answer
    x = 67,360.57

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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.