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Finding the Fourth Proportional to 43,951.20, 65,811.60 and 32,200.80

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Solution

The fourth proportional to 43,951.20, 65,811.60 and 32,200.80 is: 48,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,951.20 : 65,811.60 = 32,200.80 : x
  2. Step 2: Convert to fraction form
    43,951.20/65,811.60 = 32,200.80/x
  3. Step 3: Cross multiply
    43,951.20x = 65,811.60 × 32,200.80
  4. Step 4: Simplify right side
    43,951.20x = 2,119,186,169.28
  5. Step 5: Solve for x
    x = 2,119,186,169.28/43,951.20
  6. Step 6: Final answer
    x = 48,216.80

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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.