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Finding the Fourth Proportional to 195.75, 293.60 and 74.00

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Solution

The fourth proportional to 195.75, 293.60 and 74.00 is: 110.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.75 : 293.60 = 74.00 : x
  2. Step 2: Convert to fraction form
    195.75/293.60 = 74.00/x
  3. Step 3: Cross multiply
    195.75x = 293.60 × 74.00
  4. Step 4: Simplify right side
    195.75x = 21,724.56
  5. Step 5: Solve for x
    x = 21,724.56/195.75
  6. Step 6: Final answer
    x = 110.98

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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.