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Finding the Fourth Proportional to 321,853.20, 483,010.20 and 181,462.80

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Solution

The fourth proportional to 321,853.20, 483,010.20 and 181,462.80 is: 272,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,853.20 : 483,010.20 = 181,462.80 : x
  2. Step 2: Convert to fraction form
    321,853.20/483,010.20 = 181,462.80/x
  3. Step 3: Cross multiply
    321,853.20x = 483,010.20 × 181,462.80
  4. Step 4: Simplify right side
    321,853.20x = 87,648,383,320.56
  5. Step 5: Solve for x
    x = 87,648,383,320.56/321,853.20
  6. Step 6: Final answer
    x = 272,324.10

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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.