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Finding the Fourth Proportional to 162.44, 244.08 and 122.24

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Solution

The fourth proportional to 162.44, 244.08 and 122.24 is: 183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.44 : 244.08 = 122.24 : x
  2. Step 2: Convert to fraction form
    162.44/244.08 = 122.24/x
  3. Step 3: Cross multiply
    162.44x = 244.08 × 122.24
  4. Step 4: Simplify right side
    162.44x = 29,836.34
  5. Step 5: Solve for x
    x = 29,836.34/162.44
  6. Step 6: Final answer
    x = 183.68

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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.