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Finding the Fourth Proportional to 195.94, 294 and 74.29

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Solution

The fourth proportional to 195.94, 294 and 74.29 is: 111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.94 : 294 = 74.29 : x
  2. Step 2: Convert to fraction form
    195.94/294 = 74.29/x
  3. Step 3: Cross multiply
    195.94x = 294 × 74.29
  4. Step 4: Simplify right side
    195.94x = 21,841.26
  5. Step 5: Solve for x
    x = 21,841.26/195.94
  6. Step 6: Final answer
    x = 111.47

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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.