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Finding the Fourth Proportional to 163.92, 246.84 and 146.04

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Solution

The fourth proportional to 163.92, 246.84 and 146.04 is: 219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.92 : 246.84 = 146.04 : x
  2. Step 2: Convert to fraction form
    163.92/246.84 = 146.04/x
  3. Step 3: Cross multiply
    163.92x = 246.84 × 146.04
  4. Step 4: Simplify right side
    163.92x = 36,048.51
  5. Step 5: Solve for x
    x = 36,048.51/163.92
  6. Step 6: Final answer
    x = 219.92

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Why These Related Problems?

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