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Finding the Fourth Proportional to 216,628.20, 324,942.30 and 182,413.80

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Solution

The fourth proportional to 216,628.20, 324,942.30 and 182,413.80 is: 273,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,628.20 : 324,942.30 = 182,413.80 : x
  2. Step 2: Convert to fraction form
    216,628.20/324,942.30 = 182,413.80/x
  3. Step 3: Cross multiply
    216,628.20x = 324,942.30 × 182,413.80
  4. Step 4: Simplify right side
    216,628.20x = 59,273,959,723.74
  5. Step 5: Solve for x
    x = 59,273,959,723.74/216,628.20
  6. Step 6: Final answer
    x = 273,620.70

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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.