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Finding the Fourth Proportional to 356.24, 533.66 and 173.08

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Solution

The fourth proportional to 356.24, 533.66 and 173.08 is: 259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.24 : 533.66 = 173.08 : x
  2. Step 2: Convert to fraction form
    356.24/533.66 = 173.08/x
  3. Step 3: Cross multiply
    356.24x = 533.66 × 173.08
  4. Step 4: Simplify right side
    356.24x = 92,365.67
  5. Step 5: Solve for x
    x = 92,365.67/356.24
  6. Step 6: Final answer
    x = 259.28

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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.