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Finding the Fourth Proportional to 193.87, 267.54 and 115.24

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Solution

The fourth proportional to 193.87, 267.54 and 115.24 is: 159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.87 : 267.54 = 115.24 : x
  2. Step 2: Convert to fraction form
    193.87/267.54 = 115.24/x
  3. Step 3: Cross multiply
    193.87x = 267.54 × 115.24
  4. Step 4: Simplify right side
    193.87x = 30,831.31
  5. Step 5: Solve for x
    x = 30,831.31/193.87
  6. Step 6: Final answer
    x = 159.03

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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.