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Finding the Fourth Proportional to 165.50, 246.76 and 159.57

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Solution

The fourth proportional to 165.50, 246.76 and 159.57 is: 237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.50 : 246.76 = 159.57 : x
  2. Step 2: Convert to fraction form
    165.50/246.76 = 159.57/x
  3. Step 3: Cross multiply
    165.50x = 246.76 × 159.57
  4. Step 4: Simplify right side
    165.50x = 39,375.49
  5. Step 5: Solve for x
    x = 39,375.49/165.50
  6. Step 6: Final answer
    x = 237.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.