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Finding the Fourth Proportional to 321,949.35, 482,768.51 and 188,872.83

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Solution

The fourth proportional to 321,949.35, 482,768.51 and 188,872.83 is: 283,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,949.35 : 482,768.51 = 188,872.83 : x
  2. Step 2: Convert to fraction form
    321,949.35/482,768.51 = 188,872.83/x
  3. Step 3: Cross multiply
    321,949.35x = 482,768.51 × 188,872.83
  4. Step 4: Simplify right side
    321,949.35x = 91,181,853,774.22
  5. Step 5: Solve for x
    x = 91,181,853,774.22/321,949.35
  6. Step 6: Final answer
    x = 283,218.01

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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.