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Finding the Fourth Proportional to 321,596.15, 443,791.44 and 178,369.52

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Solution

The fourth proportional to 321,596.15, 443,791.44 and 178,369.52 is: 246,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,596.15 : 443,791.44 = 178,369.52 : x
  2. Step 2: Convert to fraction form
    321,596.15/443,791.44 = 178,369.52/x
  3. Step 3: Cross multiply
    321,596.15x = 443,791.44 × 178,369.52
  4. Step 4: Simplify right side
    321,596.15x = 79,158,863,913.95
  5. Step 5: Solve for x
    x = 79,158,863,913.95/321,596.15
  6. Step 6: Final answer
    x = 246,143.70

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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.