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Finding the Fourth Proportional to 183.49, 275.43 and 92.16

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Solution

The fourth proportional to 183.49, 275.43 and 92.16 is: 138.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.49 : 275.43 = 92.16 : x
  2. Step 2: Convert to fraction form
    183.49/275.43 = 92.16/x
  3. Step 3: Cross multiply
    183.49x = 275.43 × 92.16
  4. Step 4: Simplify right side
    183.49x = 25,383.97
  5. Step 5: Solve for x
    x = 25,383.97/183.49
  6. Step 6: Final answer
    x = 138.34

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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.