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Finding the Fourth Proportional to 355.67, 533.50 and 160.74

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Solution

The fourth proportional to 355.67, 533.50 and 160.74 is: 241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.67 : 533.50 = 160.74 : x
  2. Step 2: Convert to fraction form
    355.67/533.50 = 160.74/x
  3. Step 3: Cross multiply
    355.67x = 533.50 × 160.74
  4. Step 4: Simplify right side
    355.67x = 85,752.79
  5. Step 5: Solve for x
    x = 85,752.79/355.67
  6. Step 6: Final answer
    x = 241.10

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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.