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Finding the Fourth Proportional to 69,195.80, 103,793.66 and 49,512.80

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Solution

The fourth proportional to 69,195.80, 103,793.66 and 49,512.80 is: 74,269.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,195.80 : 103,793.66 = 49,512.80 : x
  2. Step 2: Convert to fraction form
    69,195.80/103,793.66 = 49,512.80/x
  3. Step 3: Cross multiply
    69,195.80x = 103,793.66 × 49,512.80
  4. Step 4: Simplify right side
    69,195.80x = 5,139,114,728.85
  5. Step 5: Solve for x
    x = 5,139,114,728.85/69,195.80
  6. Step 6: Final answer
    x = 74,269.17

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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.