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Finding the Fourth Proportional to 263.92, 364.18 and 165.68

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Solution

The fourth proportional to 263.92, 364.18 and 165.68 is: 228.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.92 : 364.18 = 165.68 : x
  2. Step 2: Convert to fraction form
    263.92/364.18 = 165.68/x
  3. Step 3: Cross multiply
    263.92x = 364.18 × 165.68
  4. Step 4: Simplify right side
    263.92x = 60,337.34
  5. Step 5: Solve for x
    x = 60,337.34/263.92
  6. Step 6: Final answer
    x = 228.62

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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.