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Finding the Fourth Proportional to 111, 166.52 and 62.92

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Solution

The fourth proportional to 111, 166.52 and 62.92 is: 94.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111 : 166.52 = 62.92 : x
  2. Step 2: Convert to fraction form
    111/166.52 = 62.92/x
  3. Step 3: Cross multiply
    111x = 166.52 × 62.92
  4. Step 4: Simplify right side
    111x = 10,477.44
  5. Step 5: Solve for x
    x = 10,477.44/111
  6. Step 6: Final answer
    x = 94.39

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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.