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Finding the Fourth Proportional to 173,822.70, 260,628.45 and 68,520.30

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Solution

The fourth proportional to 173,822.70, 260,628.45 and 68,520.30 is: 102,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,822.70 : 260,628.45 = 68,520.30 : x
  2. Step 2: Convert to fraction form
    173,822.70/260,628.45 = 68,520.30/x
  3. Step 3: Cross multiply
    173,822.70x = 260,628.45 × 68,520.30
  4. Step 4: Simplify right side
    173,822.70x = 17,858,339,582.54
  5. Step 5: Solve for x
    x = 17,858,339,582.54/173,822.70
  6. Step 6: Final answer
    x = 102,738.82

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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.