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Finding the Fourth Proportional to 356.18, 533.96 and 124.93

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Solution

The fourth proportional to 356.18, 533.96 and 124.93 is: 187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.18 : 533.96 = 124.93 : x
  2. Step 2: Convert to fraction form
    356.18/533.96 = 124.93/x
  3. Step 3: Cross multiply
    356.18x = 533.96 × 124.93
  4. Step 4: Simplify right side
    356.18x = 66,704.33
  5. Step 5: Solve for x
    x = 66,704.33/356.18
  6. Step 6: Final answer
    x = 187.28

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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.