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Finding the Fourth Proportional to 43,932.60, 65,745.30 and 40,246.20

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Solution

The fourth proportional to 43,932.60, 65,745.30 and 40,246.20 is: 60,228.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,932.60 : 65,745.30 = 40,246.20 : x
  2. Step 2: Convert to fraction form
    43,932.60/65,745.30 = 40,246.20/x
  3. Step 3: Cross multiply
    43,932.60x = 65,745.30 × 40,246.20
  4. Step 4: Simplify right side
    43,932.60x = 2,645,998,492.86
  5. Step 5: Solve for x
    x = 2,645,998,492.86/43,932.60
  6. Step 6: Final answer
    x = 60,228.59

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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.