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Finding the Fourth Proportional to 466.62, 699.74 and 141.92

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Solution

The fourth proportional to 466.62, 699.74 and 141.92 is: 212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.62 : 699.74 = 141.92 : x
  2. Step 2: Convert to fraction form
    466.62/699.74 = 141.92/x
  3. Step 3: Cross multiply
    466.62x = 699.74 × 141.92
  4. Step 4: Simplify right side
    466.62x = 99,302.89
  5. Step 5: Solve for x
    x = 99,302.89/466.62
  6. Step 6: Final answer
    x = 212.81

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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.