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Finding the Fourth Proportional to 192.05, 265.03 and 113.36

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Solution

The fourth proportional to 192.05, 265.03 and 113.36 is: 156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.05 : 265.03 = 113.36 : x
  2. Step 2: Convert to fraction form
    192.05/265.03 = 113.36/x
  3. Step 3: Cross multiply
    192.05x = 265.03 × 113.36
  4. Step 4: Simplify right side
    192.05x = 30,042.19
  5. Step 5: Solve for x
    x = 30,042.19/192.05
  6. Step 6: Final answer
    x = 156.43

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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.