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Finding the Fourth Proportional to 133.44, 200.16 and 124.16

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Solution

The fourth proportional to 133.44, 200.16 and 124.16 is: 186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.44 : 200.16 = 124.16 : x
  2. Step 2: Convert to fraction form
    133.44/200.16 = 124.16/x
  3. Step 3: Cross multiply
    133.44x = 200.16 × 124.16
  4. Step 4: Simplify right side
    133.44x = 24,851.87
  5. Step 5: Solve for x
    x = 24,851.87/133.44
  6. Step 6: Final answer
    x = 186.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.