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Finding the Fourth Proportional to 85,336.88, 128,023.52 and 32,745.92

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Solution

The fourth proportional to 85,336.88, 128,023.52 and 32,745.92 is: 49,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,336.88 : 128,023.52 = 32,745.92 : x
  2. Step 2: Convert to fraction form
    85,336.88/128,023.52 = 32,745.92/x
  3. Step 3: Cross multiply
    85,336.88x = 128,023.52 × 32,745.92
  4. Step 4: Simplify right side
    85,336.88x = 4,192,247,944.04
  5. Step 5: Solve for x
    x = 4,192,247,944.04/85,336.88
  6. Step 6: Final answer
    x = 49,125.86

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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.