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Finding the Fourth Proportional to 451,604.88, 677,280.84 and 136,015.92

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Solution

The fourth proportional to 451,604.88, 677,280.84 and 136,015.92 is: 203,985.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,604.88 : 677,280.84 = 136,015.92 : x
  2. Step 2: Convert to fraction form
    451,604.88/677,280.84 = 136,015.92/x
  3. Step 3: Cross multiply
    451,604.88x = 677,280.84 × 136,015.92
  4. Step 4: Simplify right side
    451,604.88x = 92,120,976,550.97
  5. Step 5: Solve for x
    x = 92,120,976,550.97/451,604.88
  6. Step 6: Final answer
    x = 203,985.79

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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.