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Finding the Fourth Proportional to 324,627.21, 447,976.92 and 181,388.43

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Solution

The fourth proportional to 324,627.21, 447,976.92 and 181,388.43 is: 250,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,627.21 : 447,976.92 = 181,388.43 : x
  2. Step 2: Convert to fraction form
    324,627.21/447,976.92 = 181,388.43/x
  3. Step 3: Cross multiply
    324,627.21x = 447,976.92 × 181,388.43
  4. Step 4: Simplify right side
    324,627.21x = 81,257,830,195.04
  5. Step 5: Solve for x
    x = 81,257,830,195.04/324,627.21
  6. Step 6: Final answer
    x = 250,311.21

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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.