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Finding the Fourth Proportional to 173,433.91, 260,147.22 and 79,939.66

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Solution

The fourth proportional to 173,433.91, 260,147.22 and 79,939.66 is: 119,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,433.91 : 260,147.22 = 79,939.66 : x
  2. Step 2: Convert to fraction form
    173,433.91/260,147.22 = 79,939.66/x
  3. Step 3: Cross multiply
    173,433.91x = 260,147.22 × 79,939.66
  4. Step 4: Simplify right side
    173,433.91x = 20,796,079,366.60
  5. Step 5: Solve for x
    x = 20,796,079,366.60/173,433.91
  6. Step 6: Final answer
    x = 119,907.81

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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.