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Finding the Fourth Proportional to 164.36, 246.21 and 92.07

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Solution

The fourth proportional to 164.36, 246.21 and 92.07 is: 137.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.36 : 246.21 = 92.07 : x
  2. Step 2: Convert to fraction form
    164.36/246.21 = 92.07/x
  3. Step 3: Cross multiply
    164.36x = 246.21 × 92.07
  4. Step 4: Simplify right side
    164.36x = 22,668.21
  5. Step 5: Solve for x
    x = 22,668.21/164.36
  6. Step 6: Final answer
    x = 137.92

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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.