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Finding the Fourth Proportional to 194.92, 268.44 and 145.93

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Solution

The fourth proportional to 194.92, 268.44 and 145.93 is: 200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.92 : 268.44 = 145.93 : x
  2. Step 2: Convert to fraction form
    194.92/268.44 = 145.93/x
  3. Step 3: Cross multiply
    194.92x = 268.44 × 145.93
  4. Step 4: Simplify right side
    194.92x = 39,173.45
  5. Step 5: Solve for x
    x = 39,173.45/194.92
  6. Step 6: Final answer
    x = 200.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.