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Finding the Fourth Proportional to 192.36, 265.50 and 126.96

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Solution

The fourth proportional to 192.36, 265.50 and 126.96 is: 175.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.36 : 265.50 = 126.96 : x
  2. Step 2: Convert to fraction form
    192.36/265.50 = 126.96/x
  3. Step 3: Cross multiply
    192.36x = 265.50 × 126.96
  4. Step 4: Simplify right side
    192.36x = 33,707.88
  5. Step 5: Solve for x
    x = 33,707.88/192.36
  6. Step 6: Final answer
    x = 175.23

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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.