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Finding the Fourth Proportional to 165.99, 248.89 and 63.24

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Solution

The fourth proportional to 165.99, 248.89 and 63.24 is: 94.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.99 : 248.89 = 63.24 : x
  2. Step 2: Convert to fraction form
    165.99/248.89 = 63.24/x
  3. Step 3: Cross multiply
    165.99x = 248.89 × 63.24
  4. Step 4: Simplify right side
    165.99x = 15,739.80
  5. Step 5: Solve for x
    x = 15,739.80/165.99
  6. Step 6: Final answer
    x = 94.82

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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.