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Finding the Fourth Proportional to 368,481.89, 552,835.65 and 188,694.61

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Solution

The fourth proportional to 368,481.89, 552,835.65 and 188,694.61 is: 283,099.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,481.89 : 552,835.65 = 188,694.61 : x
  2. Step 2: Convert to fraction form
    368,481.89/552,835.65 = 188,694.61/x
  3. Step 3: Cross multiply
    368,481.89x = 552,835.65 × 188,694.61
  4. Step 4: Simplify right side
    368,481.89x = 104,317,107,370.85
  5. Step 5: Solve for x
    x = 104,317,107,370.85/368,481.89
  6. Step 6: Final answer
    x = 283,099.69

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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.