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Finding the Fourth Proportional to 116.74, 160.77 and 114.22

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Solution

The fourth proportional to 116.74, 160.77 and 114.22 is: 157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.74 : 160.77 = 114.22 : x
  2. Step 2: Convert to fraction form
    116.74/160.77 = 114.22/x
  3. Step 3: Cross multiply
    116.74x = 160.77 × 114.22
  4. Step 4: Simplify right side
    116.74x = 18,363.15
  5. Step 5: Solve for x
    x = 18,363.15/116.74
  6. Step 6: Final answer
    x = 157.30

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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.