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Finding the Fourth Proportional to 324,666.30, 447,749.39 and 203,818.82

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Solution

The fourth proportional to 324,666.30, 447,749.39 and 203,818.82 is: 281,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,666.30 : 447,749.39 = 203,818.82 : x
  2. Step 2: Convert to fraction form
    324,666.30/447,749.39 = 203,818.82/x
  3. Step 3: Cross multiply
    324,666.30x = 447,749.39 × 203,818.82
  4. Step 4: Simplify right side
    324,666.30x = 91,259,753,954.44
  5. Step 5: Solve for x
    x = 91,259,753,954.44/324,666.30
  6. Step 6: Final answer
    x = 281,087.86

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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.