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Finding the Fourth Proportional to 321,593.59, 443,826.39 and 178,399.75

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Solution

The fourth proportional to 321,593.59, 443,826.39 and 178,399.75 is: 246,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,593.59 : 443,826.39 = 178,399.75 : x
  2. Step 2: Convert to fraction form
    321,593.59/443,826.39 = 178,399.75/x
  3. Step 3: Cross multiply
    321,593.59x = 443,826.39 × 178,399.75
  4. Step 4: Simplify right side
    321,593.59x = 79,178,517,019.40
  5. Step 5: Solve for x
    x = 79,178,517,019.40/321,593.59
  6. Step 6: Final answer
    x = 246,206.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.