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Finding the Fourth Proportional to 356.16, 534.31 and 150.73

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Solution

The fourth proportional to 356.16, 534.31 and 150.73 is: 226.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.16 : 534.31 = 150.73 : x
  2. Step 2: Convert to fraction form
    356.16/534.31 = 150.73/x
  3. Step 3: Cross multiply
    356.16x = 534.31 × 150.73
  4. Step 4: Simplify right side
    356.16x = 80,533.50
  5. Step 5: Solve for x
    x = 80,533.50/356.16
  6. Step 6: Final answer
    x = 226.12

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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.