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Finding the Fourth Proportional to 124, 184.99 and 113.64

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Solution

The fourth proportional to 124, 184.99 and 113.64 is: 169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124 : 184.99 = 113.64 : x
  2. Step 2: Convert to fraction form
    124/184.99 = 113.64/x
  3. Step 3: Cross multiply
    124x = 184.99 × 113.64
  4. Step 4: Simplify right side
    124x = 21,022.26
  5. Step 5: Solve for x
    x = 21,022.26/124
  6. Step 6: Final answer
    x = 169.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.