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Finding the Fourth Proportional to 116.90, 160.26 and 114.86

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Solution

The fourth proportional to 116.90, 160.26 and 114.86 is: 157.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.90 : 160.26 = 114.86 : x
  2. Step 2: Convert to fraction form
    116.90/160.26 = 114.86/x
  3. Step 3: Cross multiply
    116.90x = 160.26 × 114.86
  4. Step 4: Simplify right side
    116.90x = 18,406.66
  5. Step 5: Solve for x
    x = 18,406.66/116.90
  6. Step 6: Final answer
    x = 157.46

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.