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Finding the Fourth Proportional to 332.92, 499.50 and 140.56

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Solution

The fourth proportional to 332.92, 499.50 and 140.56 is: 210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.92 : 499.50 = 140.56 : x
  2. Step 2: Convert to fraction form
    332.92/499.50 = 140.56/x
  3. Step 3: Cross multiply
    332.92x = 499.50 × 140.56
  4. Step 4: Simplify right side
    332.92x = 70,209.72
  5. Step 5: Solve for x
    x = 70,209.72/332.92
  6. Step 6: Final answer
    x = 210.89

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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.