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Finding the Fourth Proportional to 355.67, 533.37 and 173.01

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Solution

The fourth proportional to 355.67, 533.37 and 173.01 is: 259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.67 : 533.37 = 173.01 : x
  2. Step 2: Convert to fraction form
    355.67/533.37 = 173.01/x
  3. Step 3: Cross multiply
    355.67x = 533.37 × 173.01
  4. Step 4: Simplify right side
    355.67x = 92,277.48
  5. Step 5: Solve for x
    x = 92,277.48/355.67
  6. Step 6: Final answer
    x = 259.45

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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.