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Finding the Fourth Proportional to 164.46, 246.77 and 73.22

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Solution

The fourth proportional to 164.46, 246.77 and 73.22 is: 109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.46 : 246.77 = 73.22 : x
  2. Step 2: Convert to fraction form
    164.46/246.77 = 73.22/x
  3. Step 3: Cross multiply
    164.46x = 246.77 × 73.22
  4. Step 4: Simplify right side
    164.46x = 18,068.13
  5. Step 5: Solve for x
    x = 18,068.13/164.46
  6. Step 6: Final answer
    x = 109.86

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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.