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Finding the Fourth Proportional to 114.44, 171.92 and 98.24

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Solution

The fourth proportional to 114.44, 171.92 and 98.24 is: 147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.44 : 171.92 = 98.24 : x
  2. Step 2: Convert to fraction form
    114.44/171.92 = 98.24/x
  3. Step 3: Cross multiply
    114.44x = 171.92 × 98.24
  4. Step 4: Simplify right side
    114.44x = 16,888.81
  5. Step 5: Solve for x
    x = 16,888.81/114.44
  6. Step 6: Final answer
    x = 147.58

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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.