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Finding the Fourth Proportional to 57,977.20, 87,030.60 and 44,887.60

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Solution

The fourth proportional to 57,977.20, 87,030.60 and 44,887.60 is: 67,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,977.20 : 87,030.60 = 44,887.60 : x
  2. Step 2: Convert to fraction form
    57,977.20/87,030.60 = 44,887.60/x
  3. Step 3: Cross multiply
    57,977.20x = 87,030.60 × 44,887.60
  4. Step 4: Simplify right side
    57,977.20x = 3,906,594,760.56
  5. Step 5: Solve for x
    x = 3,906,594,760.56/57,977.20
  6. Step 6: Final answer
    x = 67,381.57

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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.