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Finding the Fourth Proportional to 363,515.28, 545,207.16 and 110,735.28

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Solution

The fourth proportional to 363,515.28, 545,207.16 and 110,735.28 is: 166,082.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,515.28 : 545,207.16 = 110,735.28 : x
  2. Step 2: Convert to fraction form
    363,515.28/545,207.16 = 110,735.28/x
  3. Step 3: Cross multiply
    363,515.28x = 545,207.16 × 110,735.28
  4. Step 4: Simplify right side
    363,515.28x = 60,373,667,520.60
  5. Step 5: Solve for x
    x = 60,373,667,520.60/363,515.28
  6. Step 6: Final answer
    x = 166,082.89

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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.