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Finding the Fourth Proportional to 324,691.21, 447,783.72 and 203,843.77

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Solution

The fourth proportional to 324,691.21, 447,783.72 and 203,843.77 is: 281,122.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,691.21 : 447,783.72 = 203,843.77 : x
  2. Step 2: Convert to fraction form
    324,691.21/447,783.72 = 203,843.77/x
  3. Step 3: Cross multiply
    324,691.21x = 447,783.72 × 203,843.77
  4. Step 4: Simplify right side
    324,691.21x = 91,277,921,629.42
  5. Step 5: Solve for x
    x = 91,277,921,629.42/324,691.21
  6. Step 6: Final answer
    x = 281,122.24

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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.