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Finding the Fourth Proportional to 195.96, 268.98 and 185.16

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Solution

The fourth proportional to 195.96, 268.98 and 185.16 is: 254.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.96 : 268.98 = 185.16 : x
  2. Step 2: Convert to fraction form
    195.96/268.98 = 185.16/x
  3. Step 3: Cross multiply
    195.96x = 268.98 × 185.16
  4. Step 4: Simplify right side
    195.96x = 49,804.34
  5. Step 5: Solve for x
    x = 49,804.34/195.96
  6. Step 6: Final answer
    x = 254.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.