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Finding the Fourth Proportional to 322,576.80, 483,289.20 and 155,997.60

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Solution

The fourth proportional to 322,576.80, 483,289.20 and 155,997.60 is: 233,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,576.80 : 483,289.20 = 155,997.60 : x
  2. Step 2: Convert to fraction form
    322,576.80/483,289.20 = 155,997.60/x
  3. Step 3: Cross multiply
    322,576.80x = 483,289.20 × 155,997.60
  4. Step 4: Simplify right side
    322,576.80x = 75,391,955,305.92
  5. Step 5: Solve for x
    x = 75,391,955,305.92/322,576.80
  6. Step 6: Final answer
    x = 233,717.85

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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.