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Finding the Fourth Proportional to 192.54, 265.61 and 113.83

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Solution

The fourth proportional to 192.54, 265.61 and 113.83 is: 157.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.54 : 265.61 = 113.83 : x
  2. Step 2: Convert to fraction form
    192.54/265.61 = 113.83/x
  3. Step 3: Cross multiply
    192.54x = 265.61 × 113.83
  4. Step 4: Simplify right side
    192.54x = 30,234.39
  5. Step 5: Solve for x
    x = 30,234.39/192.54
  6. Step 6: Final answer
    x = 157.03

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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.