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Finding the Fourth Proportional to 349.52, 524.06 and 133

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Solution

The fourth proportional to 349.52, 524.06 and 133 is: 199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.52 : 524.06 = 133 : x
  2. Step 2: Convert to fraction form
    349.52/524.06 = 133/x
  3. Step 3: Cross multiply
    349.52x = 524.06 × 133
  4. Step 4: Simplify right side
    349.52x = 69,699.98
  5. Step 5: Solve for x
    x = 69,699.98/349.52
  6. Step 6: Final answer
    x = 199.42

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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.