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Finding the Fourth Proportional to 577,469.79, 866,190.11 and 156,734.73

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Solution

The fourth proportional to 577,469.79, 866,190.11 and 156,734.73 is: 235,098.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,469.79 : 866,190.11 = 156,734.73 : x
  2. Step 2: Convert to fraction form
    577,469.79/866,190.11 = 156,734.73/x
  3. Step 3: Cross multiply
    577,469.79x = 866,190.11 × 156,734.73
  4. Step 4: Simplify right side
    577,469.79x = 135,762,072,235.85
  5. Step 5: Solve for x
    x = 135,762,072,235.85/577,469.79
  6. Step 6: Final answer
    x = 235,098.14

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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.