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Finding the Fourth Proportional to 124, 185.74 and 63.02

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Solution

The fourth proportional to 124, 185.74 and 63.02 is: 94.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124 : 185.74 = 63.02 : x
  2. Step 2: Convert to fraction form
    124/185.74 = 63.02/x
  3. Step 3: Cross multiply
    124x = 185.74 × 63.02
  4. Step 4: Simplify right side
    124x = 11,705.33
  5. Step 5: Solve for x
    x = 11,705.33/124
  6. Step 6: Final answer
    x = 94.40

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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.