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Finding the Fourth Proportional to 239,147.44, 330,038.44 and 131,717.43

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Solution

The fourth proportional to 239,147.44, 330,038.44 and 131,717.43 is: 181,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,147.44 : 330,038.44 = 131,717.43 : x
  2. Step 2: Convert to fraction form
    239,147.44/330,038.44 = 131,717.43/x
  3. Step 3: Cross multiply
    239,147.44x = 330,038.44 × 131,717.43
  4. Step 4: Simplify right side
    239,147.44x = 43,471,814,788.72
  5. Step 5: Solve for x
    x = 43,471,814,788.72/239,147.44
  6. Step 6: Final answer
    x = 181,778.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.