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Finding the Fourth Proportional to 163.92, 246.84 and 148.32

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Solution

The fourth proportional to 163.92, 246.84 and 148.32 is: 223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.92 : 246.84 = 148.32 : x
  2. Step 2: Convert to fraction form
    163.92/246.84 = 148.32/x
  3. Step 3: Cross multiply
    163.92x = 246.84 × 148.32
  4. Step 4: Simplify right side
    163.92x = 36,611.31
  5. Step 5: Solve for x
    x = 36,611.31/163.92
  6. Step 6: Final answer
    x = 223.35

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.