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Finding the Fourth Proportional to 149.85, 224.44 and 92.00

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Solution

The fourth proportional to 149.85, 224.44 and 92.00 is: 137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.85 : 224.44 = 92.00 : x
  2. Step 2: Convert to fraction form
    149.85/224.44 = 92.00/x
  3. Step 3: Cross multiply
    149.85x = 224.44 × 92.00
  4. Step 4: Simplify right side
    149.85x = 20,648.81
  5. Step 5: Solve for x
    x = 20,648.81/149.85
  6. Step 6: Final answer
    x = 137.80

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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.