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Finding the Fourth Proportional to 166.67, 230 and 92.99

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Solution

The fourth proportional to 166.67, 230 and 92.99 is: 128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.67 : 230 = 92.99 : x
  2. Step 2: Convert to fraction form
    166.67/230 = 92.99/x
  3. Step 3: Cross multiply
    166.67x = 230 × 92.99
  4. Step 4: Simplify right side
    166.67x = 21,386.55
  5. Step 5: Solve for x
    x = 21,386.55/166.67
  6. Step 6: Final answer
    x = 128.32

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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.