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Finding the Fourth Proportional to 372,099.96, 557,447.58 and 219,842.73

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Solution

The fourth proportional to 372,099.96, 557,447.58 and 219,842.73 is: 329,349.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,099.96 : 557,447.58 = 219,842.73 : x
  2. Step 2: Convert to fraction form
    372,099.96/557,447.58 = 219,842.73/x
  3. Step 3: Cross multiply
    372,099.96x = 557,447.58 × 219,842.73
  4. Step 4: Simplify right side
    372,099.96x = 122,550,797,819.09
  5. Step 5: Solve for x
    x = 122,550,797,819.09/372,099.96
  6. Step 6: Final answer
    x = 329,349.13

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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.