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Finding the Fourth Proportional to 164.91, 247.47 and 96.46

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Solution

The fourth proportional to 164.91, 247.47 and 96.46 is: 144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.91 : 247.47 = 96.46 : x
  2. Step 2: Convert to fraction form
    164.91/247.47 = 96.46/x
  3. Step 3: Cross multiply
    164.91x = 247.47 × 96.46
  4. Step 4: Simplify right side
    164.91x = 23,870.96
  5. Step 5: Solve for x
    x = 23,870.96/164.91
  6. Step 6: Final answer
    x = 144.75

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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.