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Finding the Fourth Proportional to 160.36, 240.18 and 112.48

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Solution

The fourth proportional to 160.36, 240.18 and 112.48 is: 168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.36 : 240.18 = 112.48 : x
  2. Step 2: Convert to fraction form
    160.36/240.18 = 112.48/x
  3. Step 3: Cross multiply
    160.36x = 240.18 × 112.48
  4. Step 4: Simplify right side
    160.36x = 27,015.45
  5. Step 5: Solve for x
    x = 27,015.45/160.36
  6. Step 6: Final answer
    x = 168.47

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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.