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Finding the Fourth Proportional to 192.60, 262.26 and 191.52

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Solution

The fourth proportional to 192.60, 262.26 and 191.52 is: 260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.60 : 262.26 = 191.52 : x
  2. Step 2: Convert to fraction form
    192.60/262.26 = 191.52/x
  3. Step 3: Cross multiply
    192.60x = 262.26 × 191.52
  4. Step 4: Simplify right side
    192.60x = 50,228.04
  5. Step 5: Solve for x
    x = 50,228.04/192.60
  6. Step 6: Final answer
    x = 260.79

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.