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Finding the Fourth Proportional to 164.24, 246.38 and 56

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Solution

The fourth proportional to 164.24, 246.38 and 56 is: 84.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.24 : 246.38 = 56 : x
  2. Step 2: Convert to fraction form
    164.24/246.38 = 56/x
  3. Step 3: Cross multiply
    164.24x = 246.38 × 56
  4. Step 4: Simplify right side
    164.24x = 13,797.28
  5. Step 5: Solve for x
    x = 13,797.28/164.24
  6. Step 6: Final answer
    x = 84.01

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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.