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Finding the Fourth Proportional to 355.32, 533.02 and 160.24

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Solution

The fourth proportional to 355.32, 533.02 and 160.24 is: 240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.32 : 533.02 = 160.24 : x
  2. Step 2: Convert to fraction form
    355.32/533.02 = 160.24/x
  3. Step 3: Cross multiply
    355.32x = 533.02 × 160.24
  4. Step 4: Simplify right side
    355.32x = 85,411.12
  5. Step 5: Solve for x
    x = 85,411.12/355.32
  6. Step 6: Final answer
    x = 240.38

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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.