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Finding the Fourth Proportional to 321,514.92, 482,272.38 and 111,154.68

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Solution

The fourth proportional to 321,514.92, 482,272.38 and 111,154.68 is: 166,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,514.92 : 482,272.38 = 111,154.68 : x
  2. Step 2: Convert to fraction form
    321,514.92/482,272.38 = 111,154.68/x
  3. Step 3: Cross multiply
    321,514.92x = 482,272.38 × 111,154.68
  4. Step 4: Simplify right side
    321,514.92x = 53,606,832,071.74
  5. Step 5: Solve for x
    x = 53,606,832,071.74/321,514.92
  6. Step 6: Final answer
    x = 166,732.02

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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.