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Finding the Fourth Proportional to 321,568.92, 482,013.18 and 108,133.52

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Solution

The fourth proportional to 321,568.92, 482,013.18 and 108,133.52 is: 162,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,568.92 : 482,013.18 = 108,133.52 : x
  2. Step 2: Convert to fraction form
    321,568.92/482,013.18 = 108,133.52/x
  3. Step 3: Cross multiply
    321,568.92x = 482,013.18 × 108,133.52
  4. Step 4: Simplify right side
    321,568.92x = 52,121,779,429.73
  5. Step 5: Solve for x
    x = 52,121,779,429.73/321,568.92
  6. Step 6: Final answer
    x = 162,085.87

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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.