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Finding the Fourth Proportional to 193.92, 265.44 and 187.36

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Solution

The fourth proportional to 193.92, 265.44 and 187.36 is: 256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.92 : 265.44 = 187.36 : x
  2. Step 2: Convert to fraction form
    193.92/265.44 = 187.36/x
  3. Step 3: Cross multiply
    193.92x = 265.44 × 187.36
  4. Step 4: Simplify right side
    193.92x = 49,732.84
  5. Step 5: Solve for x
    x = 49,732.84/193.92
  6. Step 6: Final answer
    x = 256.46

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.