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Finding the Fourth Proportional to 169.44, 253.44 and 162

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Solution

The fourth proportional to 169.44, 253.44 and 162 is: 242.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.44 : 253.44 = 162 : x
  2. Step 2: Convert to fraction form
    169.44/253.44 = 162/x
  3. Step 3: Cross multiply
    169.44x = 253.44 × 162
  4. Step 4: Simplify right side
    169.44x = 41,057.28
  5. Step 5: Solve for x
    x = 41,057.28/169.44
  6. Step 6: Final answer
    x = 242.31

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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.