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Finding the Fourth Proportional to 92.19, 126.36 and 92.04

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Solution

The fourth proportional to 92.19, 126.36 and 92.04 is: 126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.19 : 126.36 = 92.04 : x
  2. Step 2: Convert to fraction form
    92.19/126.36 = 92.04/x
  3. Step 3: Cross multiply
    92.19x = 126.36 × 92.04
  4. Step 4: Simplify right side
    92.19x = 11,629.70
  5. Step 5: Solve for x
    x = 11,629.70/92.19
  6. Step 6: Final answer
    x = 126.15

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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.