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Finding the Fourth Proportional to 349.84, 525.12 and 196

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Solution

The fourth proportional to 349.84, 525.12 and 196 is: 294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.84 : 525.12 = 196 : x
  2. Step 2: Convert to fraction form
    349.84/525.12 = 196/x
  3. Step 3: Cross multiply
    349.84x = 525.12 × 196
  4. Step 4: Simplify right side
    349.84x = 102,923.52
  5. Step 5: Solve for x
    x = 102,923.52/349.84
  6. Step 6: Final answer
    x = 294.20

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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.