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Finding the Fourth Proportional to 184.36, 254.21 and 160.83

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Solution

The fourth proportional to 184.36, 254.21 and 160.83 is: 221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.36 : 254.21 = 160.83 : x
  2. Step 2: Convert to fraction form
    184.36/254.21 = 160.83/x
  3. Step 3: Cross multiply
    184.36x = 254.21 × 160.83
  4. Step 4: Simplify right side
    184.36x = 40,884.59
  5. Step 5: Solve for x
    x = 40,884.59/184.36
  6. Step 6: Final answer
    x = 221.76

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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.