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Finding the Fourth Proportional to 160.18, 220.70 and 116.44

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Solution

The fourth proportional to 160.18, 220.70 and 116.44 is: 160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.18 : 220.70 = 116.44 : x
  2. Step 2: Convert to fraction form
    160.18/220.70 = 116.44/x
  3. Step 3: Cross multiply
    160.18x = 220.70 × 116.44
  4. Step 4: Simplify right side
    160.18x = 25,698.31
  5. Step 5: Solve for x
    x = 25,698.31/160.18
  6. Step 6: Final answer
    x = 160.43

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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.