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Finding the Fourth Proportional to 185.22, 277.83 and 63.43

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Solution

The fourth proportional to 185.22, 277.83 and 63.43 is: 95.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.22 : 277.83 = 63.43 : x
  2. Step 2: Convert to fraction form
    185.22/277.83 = 63.43/x
  3. Step 3: Cross multiply
    185.22x = 277.83 × 63.43
  4. Step 4: Simplify right side
    185.22x = 17,623.63
  5. Step 5: Solve for x
    x = 17,623.63/185.22
  6. Step 6: Final answer
    x = 95.15

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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.