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Finding the Fourth Proportional to 162.66, 244.02 and 54.44

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Solution

The fourth proportional to 162.66, 244.02 and 54.44 is: 81.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.66 : 244.02 = 54.44 : x
  2. Step 2: Convert to fraction form
    162.66/244.02 = 54.44/x
  3. Step 3: Cross multiply
    162.66x = 244.02 × 54.44
  4. Step 4: Simplify right side
    162.66x = 13,283.23
  5. Step 5: Solve for x
    x = 13,283.23/162.66
  6. Step 6: Final answer
    x = 81.66

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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.