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Finding the Fourth Proportional to 164, 245.84 and 109.92

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Solution

The fourth proportional to 164, 245.84 and 109.92 is: 164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    164 : 245.84 = 109.92 : x
  2. Step 2: Convert to fraction form
    164/245.84 = 109.92/x
  3. Step 3: Cross multiply
    164x = 245.84 × 109.92
  4. Step 4: Simplify right side
    164x = 27,022.73
  5. Step 5: Solve for x
    x = 27,022.73/164
  6. Step 6: Final answer
    x = 164.77

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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.