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Finding the Fourth Proportional to 355.50, 533.33 and 112

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Solution

The fourth proportional to 355.50, 533.33 and 112 is: 168.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.50 : 533.33 = 112 : x
  2. Step 2: Convert to fraction form
    355.50/533.33 = 112/x
  3. Step 3: Cross multiply
    355.50x = 533.33 × 112
  4. Step 4: Simplify right side
    355.50x = 59,732.96
  5. Step 5: Solve for x
    x = 59,732.96/355.50
  6. Step 6: Final answer
    x = 168.03

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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.