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Finding the Fourth Proportional to 192.42, 265.35 and 126.93

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Solution

The fourth proportional to 192.42, 265.35 and 126.93 is: 175.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.42 : 265.35 = 126.93 : x
  2. Step 2: Convert to fraction form
    192.42/265.35 = 126.93/x
  3. Step 3: Cross multiply
    192.42x = 265.35 × 126.93
  4. Step 4: Simplify right side
    192.42x = 33,680.88
  5. Step 5: Solve for x
    x = 33,680.88/192.42
  6. Step 6: Final answer
    x = 175.04

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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.