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Finding the Fourth Proportional to 59,745.60, 89,472.60 and 57,121.20

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Solution

The fourth proportional to 59,745.60, 89,472.60 and 57,121.20 is: 85,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,745.60 : 89,472.60 = 57,121.20 : x
  2. Step 2: Convert to fraction form
    59,745.60/89,472.60 = 57,121.20/x
  3. Step 3: Cross multiply
    59,745.60x = 89,472.60 × 57,121.20
  4. Step 4: Simplify right side
    59,745.60x = 5,110,782,279.12
  5. Step 5: Solve for x
    x = 5,110,782,279.12/59,745.60
  6. Step 6: Final answer
    x = 85,542.40

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1.5x scale

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.