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Finding the Fourth Proportional to 166, 229.06 and 92.32

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Solution

The fourth proportional to 166, 229.06 and 92.32 is: 127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    166 : 229.06 = 92.32 : x
  2. Step 2: Convert to fraction form
    166/229.06 = 92.32/x
  3. Step 3: Cross multiply
    166x = 229.06 × 92.32
  4. Step 4: Simplify right side
    166x = 21,146.82
  5. Step 5: Solve for x
    x = 21,146.82/166
  6. Step 6: Final answer
    x = 127.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.