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Finding the Fourth Proportional to 321,951.36, 482,771.50 and 188,874.84

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Solution

The fourth proportional to 321,951.36, 482,771.50 and 188,874.84 is: 283,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,951.36 : 482,771.50 = 188,874.84 : x
  2. Step 2: Convert to fraction form
    321,951.36/482,771.50 = 188,874.84/x
  3. Step 3: Cross multiply
    321,951.36x = 482,771.50 × 188,874.84
  4. Step 4: Simplify right side
    321,951.36x = 91,183,389,819.06
  5. Step 5: Solve for x
    x = 91,183,389,819.06/321,951.36
  6. Step 6: Final answer
    x = 283,221.01

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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.