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Finding the Fourth Proportional to 379,081.98, 568,819.77 and 154,607.10

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Solution

The fourth proportional to 379,081.98, 568,819.77 and 154,607.10 is: 231,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,081.98 : 568,819.77 = 154,607.10 : x
  2. Step 2: Convert to fraction form
    379,081.98/568,819.77 = 154,607.10/x
  3. Step 3: Cross multiply
    379,081.98x = 568,819.77 × 154,607.10
  4. Step 4: Simplify right side
    379,081.98x = 87,943,573,253.80
  5. Step 5: Solve for x
    x = 87,943,573,253.80/379,081.98
  6. Step 6: Final answer
    x = 231,990.91

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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.