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Finding the Fourth Proportional to 533.18, 799.57 and 167.87

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Solution

The fourth proportional to 533.18, 799.57 and 167.87 is: 251.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.18 : 799.57 = 167.87 : x
  2. Step 2: Convert to fraction form
    533.18/799.57 = 167.87/x
  3. Step 3: Cross multiply
    533.18x = 799.57 × 167.87
  4. Step 4: Simplify right side
    533.18x = 134,226.02
  5. Step 5: Solve for x
    x = 134,226.02/533.18
  6. Step 6: Final answer
    x = 251.74

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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.