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Finding the Fourth Proportional to 321,613.82, 482,463.39 and 119,181.86

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Solution

The fourth proportional to 321,613.82, 482,463.39 and 119,181.86 is: 178,788.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,613.82 : 482,463.39 = 119,181.86 : x
  2. Step 2: Convert to fraction form
    321,613.82/482,463.39 = 119,181.86/x
  3. Step 3: Cross multiply
    321,613.82x = 482,463.39 × 119,181.86
  4. Step 4: Simplify right side
    321,613.82x = 57,500,884,202.11
  5. Step 5: Solve for x
    x = 57,500,884,202.11/321,613.82
  6. Step 6: Final answer
    x = 178,788.60

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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.