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Finding the Fourth Proportional to 321,955.92, 482,933.88 and 111,593.88

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Solution

The fourth proportional to 321,955.92, 482,933.88 and 111,593.88 is: 167,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,955.92 : 482,933.88 = 111,593.88 : x
  2. Step 2: Convert to fraction form
    321,955.92/482,933.88 = 111,593.88/x
  3. Step 3: Cross multiply
    321,955.92x = 482,933.88 × 111,593.88
  4. Step 4: Simplify right side
    321,955.92x = 53,892,465,452.65
  5. Step 5: Solve for x
    x = 53,892,465,452.65/321,955.92
  6. Step 6: Final answer
    x = 167,390.82

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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.