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Finding the Fourth Proportional to 303,669.72, 419,067.56 and 167,703.44

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Solution

The fourth proportional to 303,669.72, 419,067.56 and 167,703.44 is: 231,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,669.72 : 419,067.56 = 167,703.44 : x
  2. Step 2: Convert to fraction form
    303,669.72/419,067.56 = 167,703.44/x
  3. Step 3: Cross multiply
    303,669.72x = 419,067.56 × 167,703.44
  4. Step 4: Simplify right side
    303,669.72x = 70,279,071,404.41
  5. Step 5: Solve for x
    x = 70,279,071,404.41/303,669.72
  6. Step 6: Final answer
    x = 231,432.60

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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.