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Finding the Fourth Proportional to 299.56, 413.20 and 183

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Solution

The fourth proportional to 299.56, 413.20 and 183 is: 252.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.56 : 413.20 = 183 : x
  2. Step 2: Convert to fraction form
    299.56/413.20 = 183/x
  3. Step 3: Cross multiply
    299.56x = 413.20 × 183
  4. Step 4: Simplify right side
    299.56x = 75,615.60
  5. Step 5: Solve for x
    x = 75,615.60/299.56
  6. Step 6: Final answer
    x = 252.42

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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.