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Finding the Fourth Proportional to 451,763.79, 677,650.95 and 136,223.43

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Solution

The fourth proportional to 451,763.79, 677,650.95 and 136,223.43 is: 204,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,763.79 : 677,650.95 = 136,223.43 : x
  2. Step 2: Convert to fraction form
    451,763.79/677,650.95 = 136,223.43/x
  3. Step 3: Cross multiply
    451,763.79x = 677,650.95 × 136,223.43
  4. Step 4: Simplify right side
    451,763.79x = 92,311,936,751.76
  5. Step 5: Solve for x
    x = 92,311,936,751.76/451,763.79
  6. Step 6: Final answer
    x = 204,336.73

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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.