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Finding the Fourth Proportional to 115,951.80, 173,977.20 and 49,423.24

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Solution

The fourth proportional to 115,951.80, 173,977.20 and 49,423.24 is: 74,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,951.80 : 173,977.20 = 49,423.24 : x
  2. Step 2: Convert to fraction form
    115,951.80/173,977.20 = 49,423.24/x
  3. Step 3: Cross multiply
    115,951.80x = 173,977.20 × 49,423.24
  4. Step 4: Simplify right side
    115,951.80x = 8,598,516,910.13
  5. Step 5: Solve for x
    x = 8,598,516,910.13/115,951.80
  6. Step 6: Final answer
    x = 74,155.96

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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.