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Finding the Fourth Proportional to 301.76, 416.41 and 167.16

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Solution

The fourth proportional to 301.76, 416.41 and 167.16 is: 230.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.76 : 416.41 = 167.16 : x
  2. Step 2: Convert to fraction form
    301.76/416.41 = 167.16/x
  3. Step 3: Cross multiply
    301.76x = 416.41 × 167.16
  4. Step 4: Simplify right side
    301.76x = 69,607.10
  5. Step 5: Solve for x
    x = 69,607.10/301.76
  6. Step 6: Final answer
    x = 230.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.