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Finding the Fourth Proportional to 57,469.56, 79,308.96 and 31,977.96

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Solution

The fourth proportional to 57,469.56, 79,308.96 and 31,977.96 is: 44,130.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,469.56 : 79,308.96 = 31,977.96 : x
  2. Step 2: Convert to fraction form
    57,469.56/79,308.96 = 31,977.96/x
  3. Step 3: Cross multiply
    57,469.56x = 79,308.96 × 31,977.96
  4. Step 4: Simplify right side
    57,469.56x = 2,536,138,750.52
  5. Step 5: Solve for x
    x = 2,536,138,750.52/57,469.56
  6. Step 6: Final answer
    x = 44,130.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.