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Finding the Fourth Proportional to 452.96, 679.56 and 164.42

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Solution

The fourth proportional to 452.96, 679.56 and 164.42 is: 246.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.96 : 679.56 = 164.42 : x
  2. Step 2: Convert to fraction form
    452.96/679.56 = 164.42/x
  3. Step 3: Cross multiply
    452.96x = 679.56 × 164.42
  4. Step 4: Simplify right side
    452.96x = 111,733.26
  5. Step 5: Solve for x
    x = 111,733.26/452.96
  6. Step 6: Final answer
    x = 246.67

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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.