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Finding the Fourth Proportional to 321,963.27, 482,835.56 and 111,552.09

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Solution

The fourth proportional to 321,963.27, 482,835.56 and 111,552.09 is: 167,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,963.27 : 482,835.56 = 111,552.09 : x
  2. Step 2: Convert to fraction form
    321,963.27/482,835.56 = 111,552.09/x
  3. Step 3: Cross multiply
    321,963.27x = 482,835.56 × 111,552.09
  4. Step 4: Simplify right side
    321,963.27x = 53,861,315,286.56
  5. Step 5: Solve for x
    x = 53,861,315,286.56/321,963.27
  6. Step 6: Final answer
    x = 167,290.25

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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.