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Finding the Fourth Proportional to 173,880.30, 260,743.65 and 80,414.70

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Solution

The fourth proportional to 173,880.30, 260,743.65 and 80,414.70 is: 120,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,880.30 : 260,743.65 = 80,414.70 : x
  2. Step 2: Convert to fraction form
    173,880.30/260,743.65 = 80,414.70/x
  3. Step 3: Cross multiply
    173,880.30x = 260,743.65 × 80,414.70
  4. Step 4: Simplify right side
    173,880.30x = 20,967,622,391.66
  5. Step 5: Solve for x
    x = 20,967,622,391.66/173,880.30
  6. Step 6: Final answer
    x = 120,586.53

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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.