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Finding the Fourth Proportional to 624, 936.06 and 168

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Solution

The fourth proportional to 624, 936.06 and 168 is: 252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    624 : 936.06 = 168 : x
  2. Step 2: Convert to fraction form
    624/936.06 = 168/x
  3. Step 3: Cross multiply
    624x = 936.06 × 168
  4. Step 4: Simplify right side
    624x = 157,258.08
  5. Step 5: Solve for x
    x = 157,258.08/624
  6. Step 6: Final answer
    x = 252.02

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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.