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Finding the Fourth Proportional to 57,880.88, 87,255.16 and 54,023.10

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Solution

The fourth proportional to 57,880.88, 87,255.16 and 54,023.10 is: 81,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,880.88 : 87,255.16 = 54,023.10 : x
  2. Step 2: Convert to fraction form
    57,880.88/87,255.16 = 54,023.10/x
  3. Step 3: Cross multiply
    57,880.88x = 87,255.16 × 54,023.10
  4. Step 4: Simplify right side
    57,880.88x = 4,713,794,234.20
  5. Step 5: Solve for x
    x = 4,713,794,234.20/57,880.88
  6. Step 6: Final answer
    x = 81,439.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.