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Finding the Fourth Proportional to 451,604.88, 677,397.60 and 136,054.80

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Solution

The fourth proportional to 451,604.88, 677,397.60 and 136,054.80 is: 204,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,604.88 : 677,397.60 = 136,054.80 : x
  2. Step 2: Convert to fraction form
    451,604.88/677,397.60 = 136,054.80/x
  3. Step 3: Cross multiply
    451,604.88x = 677,397.60 × 136,054.80
  4. Step 4: Simplify right side
    451,604.88x = 92,163,194,988.48
  5. Step 5: Solve for x
    x = 92,163,194,988.48/451,604.88
  6. Step 6: Final answer
    x = 204,079.27

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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.