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Finding the Fourth Proportional to 153.25, 229.84 and 114.60

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Solution

The fourth proportional to 153.25, 229.84 and 114.60 is: 171.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.25 : 229.84 = 114.60 : x
  2. Step 2: Convert to fraction form
    153.25/229.84 = 114.60/x
  3. Step 3: Cross multiply
    153.25x = 229.84 × 114.60
  4. Step 4: Simplify right side
    153.25x = 26,339.66
  5. Step 5: Solve for x
    x = 26,339.66/153.25
  6. Step 6: Final answer
    x = 171.87

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