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Finding the Fourth Proportional to 322,408.80, 483,288.80 and 133,007.31

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Solution

The fourth proportional to 322,408.80, 483,288.80 and 133,007.31 is: 199,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,408.80 : 483,288.80 = 133,007.31 : x
  2. Step 2: Convert to fraction form
    322,408.80/483,288.80 = 133,007.31/x
  3. Step 3: Cross multiply
    322,408.80x = 483,288.80 × 133,007.31
  4. Step 4: Simplify right side
    322,408.80x = 64,280,942,576.09
  5. Step 5: Solve for x
    x = 64,280,942,576.09/322,408.80
  6. Step 6: Final answer
    x = 199,377.13

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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.