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Finding the Fourth Proportional to 216,774.26, 324,890.56 and 104,433.54

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Solution

The fourth proportional to 216,774.26, 324,890.56 and 104,433.54 is: 156,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,774.26 : 324,890.56 = 104,433.54 : x
  2. Step 2: Convert to fraction form
    216,774.26/324,890.56 = 104,433.54/x
  3. Step 3: Cross multiply
    216,774.26x = 324,890.56 × 104,433.54
  4. Step 4: Simplify right side
    216,774.26x = 33,929,471,293.38
  5. Step 5: Solve for x
    x = 33,929,471,293.38/216,774.26
  6. Step 6: Final answer
    x = 156,519.83

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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.