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Finding the Fourth Proportional to 154,469.80, 231,704.70 and 92,261.80

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Solution

The fourth proportional to 154,469.80, 231,704.70 and 92,261.80 is: 138,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,469.80 : 231,704.70 = 92,261.80 : x
  2. Step 2: Convert to fraction form
    154,469.80/231,704.70 = 92,261.80/x
  3. Step 3: Cross multiply
    154,469.80x = 231,704.70 × 92,261.80
  4. Step 4: Simplify right side
    154,469.80x = 21,377,492,690.46
  5. Step 5: Solve for x
    x = 21,377,492,690.46/154,469.80
  6. Step 6: Final answer
    x = 138,392.70

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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.