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Finding the Fourth Proportional to 173,091.80, 259,589.10 and 54,799.40

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Solution

The fourth proportional to 173,091.80, 259,589.10 and 54,799.40 is: 82,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,091.80 : 259,589.10 = 54,799.40 : x
  2. Step 2: Convert to fraction form
    173,091.80/259,589.10 = 54,799.40/x
  3. Step 3: Cross multiply
    173,091.80x = 259,589.10 × 54,799.40
  4. Step 4: Simplify right side
    173,091.80x = 14,225,326,926.54
  5. Step 5: Solve for x
    x = 14,225,326,926.54/173,091.80
  6. Step 6: Final answer
    x = 82,183.71

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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.