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Finding the Fourth Proportional to 165.92, 248.57 and 93.83

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Solution

The fourth proportional to 165.92, 248.57 and 93.83 is: 140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.92 : 248.57 = 93.83 : x
  2. Step 2: Convert to fraction form
    165.92/248.57 = 93.83/x
  3. Step 3: Cross multiply
    165.92x = 248.57 × 93.83
  4. Step 4: Simplify right side
    165.92x = 23,322.85
  5. Step 5: Solve for x
    x = 23,322.85/165.92
  6. Step 6: Final answer
    x = 140.57

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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.