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Finding the Fourth Proportional to 192.25, 265.53 and 189.82

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Solution

The fourth proportional to 192.25, 265.53 and 189.82 is: 262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.25 : 265.53 = 189.82 : x
  2. Step 2: Convert to fraction form
    192.25/265.53 = 189.82/x
  3. Step 3: Cross multiply
    192.25x = 265.53 × 189.82
  4. Step 4: Simplify right side
    192.25x = 50,402.90
  5. Step 5: Solve for x
    x = 50,402.90/192.25
  6. Step 6: Final answer
    x = 262.17

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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.