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Finding the Fourth Proportional to 327,902.36, 491,871.17 and 103,280.37

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Solution

The fourth proportional to 327,902.36, 491,871.17 and 103,280.37 is: 154,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,902.36 : 491,871.17 = 103,280.37 : x
  2. Step 2: Convert to fraction form
    327,902.36/491,871.17 = 103,280.37/x
  3. Step 3: Cross multiply
    327,902.36x = 491,871.17 × 103,280.37
  4. Step 4: Simplify right side
    327,902.36x = 50,800,636,429.93
  5. Step 5: Solve for x
    x = 50,800,636,429.93/327,902.36
  6. Step 6: Final answer
    x = 154,926.11

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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.