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Finding the Fourth Proportional to 69,993.96, 104,874.06 and 49,180.20

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Solution

The fourth proportional to 69,993.96, 104,874.06 and 49,180.20 is: 73,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,993.96 : 104,874.06 = 49,180.20 : x
  2. Step 2: Convert to fraction form
    69,993.96/104,874.06 = 49,180.20/x
  3. Step 3: Cross multiply
    69,993.96x = 104,874.06 × 49,180.20
  4. Step 4: Simplify right side
    69,993.96x = 5,157,727,245.61
  5. Step 5: Solve for x
    x = 5,157,727,245.61/69,993.96
  6. Step 6: Final answer
    x = 73,688.18

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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.