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Finding the Fourth Proportional to 169.93, 234.49 and 92.30

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Solution

The fourth proportional to 169.93, 234.49 and 92.30 is: 127.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.93 : 234.49 = 92.30 : x
  2. Step 2: Convert to fraction form
    169.93/234.49 = 92.30/x
  3. Step 3: Cross multiply
    169.93x = 234.49 × 92.30
  4. Step 4: Simplify right side
    169.93x = 21,643.43
  5. Step 5: Solve for x
    x = 21,643.43/169.93
  6. Step 6: Final answer
    x = 127.37

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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.