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Finding the Fourth Proportional to 316.10, 474.37 and 110.68

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Solution

The fourth proportional to 316.10, 474.37 and 110.68 is: 166.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.10 : 474.37 = 110.68 : x
  2. Step 2: Convert to fraction form
    316.10/474.37 = 110.68/x
  3. Step 3: Cross multiply
    316.10x = 474.37 × 110.68
  4. Step 4: Simplify right side
    316.10x = 52,501.81
  5. Step 5: Solve for x
    x = 52,501.81/316.10
  6. Step 6: Final answer
    x = 166.09

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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.