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Finding the Fourth Proportional to 165.94, 248.74 and 125.24

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Solution

The fourth proportional to 165.94, 248.74 and 125.24 is: 187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165.94 : 248.74 = 125.24 : x
  2. Step 2: Convert to fraction form
    165.94/248.74 = 125.24/x
  3. Step 3: Cross multiply
    165.94x = 248.74 × 125.24
  4. Step 4: Simplify right side
    165.94x = 31,152.20
  5. Step 5: Solve for x
    x = 31,152.20/165.94
  6. Step 6: Final answer
    x = 187.73

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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.