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Finding the Fourth Proportional to 316.16, 473.82 and 110.54

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Solution

The fourth proportional to 316.16, 473.82 and 110.54 is: 165.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.16 : 473.82 = 110.54 : x
  2. Step 2: Convert to fraction form
    316.16/473.82 = 110.54/x
  3. Step 3: Cross multiply
    316.16x = 473.82 × 110.54
  4. Step 4: Simplify right side
    316.16x = 52,376.06
  5. Step 5: Solve for x
    x = 52,376.06/316.16
  6. Step 6: Final answer
    x = 165.66

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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.