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Finding the Fourth Proportional to 165.35, 248.06 and 96.92

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Solution

The fourth proportional to 165.35, 248.06 and 96.92 is: 145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.35 : 248.06 = 96.92 : x
  2. Step 2: Convert to fraction form
    165.35/248.06 = 96.92/x
  3. Step 3: Cross multiply
    165.35x = 248.06 × 96.92
  4. Step 4: Simplify right side
    165.35x = 24,042.11
  5. Step 5: Solve for x
    x = 24,042.11/165.35
  6. Step 6: Final answer
    x = 145.41

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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.