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Finding the Fourth Proportional to 322,481.10, 483,721.65 and 163,048.80

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Solution

The fourth proportional to 322,481.10, 483,721.65 and 163,048.80 is: 244,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,481.10 : 483,721.65 = 163,048.80 : x
  2. Step 2: Convert to fraction form
    322,481.10/483,721.65 = 163,048.80/x
  3. Step 3: Cross multiply
    322,481.10x = 483,721.65 × 163,048.80
  4. Step 4: Simplify right side
    322,481.10x = 78,870,234,566.52
  5. Step 5: Solve for x
    x = 78,870,234,566.52/322,481.10
  6. Step 6: Final answer
    x = 244,573.20

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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.