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Finding the Fourth Proportional to 43,937.60, 65,752.80 and 40,251.20

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Solution

The fourth proportional to 43,937.60, 65,752.80 and 40,251.20 is: 60,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,937.60 : 65,752.80 = 40,251.20 : x
  2. Step 2: Convert to fraction form
    43,937.60/65,752.80 = 40,251.20/x
  3. Step 3: Cross multiply
    43,937.60x = 65,752.80 × 40,251.20
  4. Step 4: Simplify right side
    43,937.60x = 2,646,629,103.36
  5. Step 5: Solve for x
    x = 2,646,629,103.36/43,937.60
  6. Step 6: Final answer
    x = 60,236.09

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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.