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Finding the Fourth Proportional to 355.98, 533.16 and 173.52

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Solution

The fourth proportional to 355.98, 533.16 and 173.52 is: 259.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.98 : 533.16 = 173.52 : x
  2. Step 2: Convert to fraction form
    355.98/533.16 = 173.52/x
  3. Step 3: Cross multiply
    355.98x = 533.16 × 173.52
  4. Step 4: Simplify right side
    355.98x = 92,513.92
  5. Step 5: Solve for x
    x = 92,513.92/355.98
  6. Step 6: Final answer
    x = 259.89

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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.