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Finding the Fourth Proportional to 173,105.80, 259,631.70 and 54,806.20

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Solution

The fourth proportional to 173,105.80, 259,631.70 and 54,806.20 is: 82,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,105.80 : 259,631.70 = 54,806.20 : x
  2. Step 2: Convert to fraction form
    173,105.80/259,631.70 = 54,806.20/x
  3. Step 3: Cross multiply
    173,105.80x = 259,631.70 × 54,806.20
  4. Step 4: Simplify right side
    173,105.80x = 14,229,426,876.54
  5. Step 5: Solve for x
    x = 14,229,426,876.54/173,105.80
  6. Step 6: Final answer
    x = 82,200.75

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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.