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Finding the Fourth Proportional to 241.92, 362.88 and 166.40

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Solution

The fourth proportional to 241.92, 362.88 and 166.40 is: 249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.92 : 362.88 = 166.40 : x
  2. Step 2: Convert to fraction form
    241.92/362.88 = 166.40/x
  3. Step 3: Cross multiply
    241.92x = 362.88 × 166.40
  4. Step 4: Simplify right side
    241.92x = 60,383.23
  5. Step 5: Solve for x
    x = 60,383.23/241.92
  6. Step 6: Final answer
    x = 249.60

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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.