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Finding the Fourth Proportional to 321,880.11, 443,885.98 and 192,797.97

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Solution

The fourth proportional to 321,880.11, 443,885.98 and 192,797.97 is: 265,876.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,880.11 : 443,885.98 = 192,797.97 : x
  2. Step 2: Convert to fraction form
    321,880.11/443,885.98 = 192,797.97/x
  3. Step 3: Cross multiply
    321,880.11x = 443,885.98 × 192,797.97
  4. Step 4: Simplify right side
    321,880.11x = 85,580,315,855.46
  5. Step 5: Solve for x
    x = 85,580,315,855.46/321,880.11
  6. Step 6: Final answer
    x = 265,876.37

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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.