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Finding the Fourth Proportional to 164.62, 246.90 and 73.32

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Solution

The fourth proportional to 164.62, 246.90 and 73.32 is: 109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.62 : 246.90 = 73.32 : x
  2. Step 2: Convert to fraction form
    164.62/246.90 = 73.32/x
  3. Step 3: Cross multiply
    164.62x = 246.90 × 73.32
  4. Step 4: Simplify right side
    164.62x = 18,102.71
  5. Step 5: Solve for x
    x = 18,102.71/164.62
  6. Step 6: Final answer
    x = 109.97

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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.