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Finding the Fourth Proportional to 57,241.70, 85,862.55 and 48,785.30

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Solution

The fourth proportional to 57,241.70, 85,862.55 and 48,785.30 is: 73,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,241.70 : 85,862.55 = 48,785.30 : x
  2. Step 2: Convert to fraction form
    57,241.70/85,862.55 = 48,785.30/x
  3. Step 3: Cross multiply
    57,241.70x = 85,862.55 × 48,785.30
  4. Step 4: Simplify right side
    57,241.70x = 4,188,830,260.52
  5. Step 5: Solve for x
    x = 4,188,830,260.52/57,241.70
  6. Step 6: Final answer
    x = 73,177.95

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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.