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Finding the Fourth Proportional to 73,321.13, 101,183.15 and 39,787.13

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Solution

The fourth proportional to 73,321.13, 101,183.15 and 39,787.13 is: 54,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,321.13 : 101,183.15 = 39,787.13 : x
  2. Step 2: Convert to fraction form
    73,321.13/101,183.15 = 39,787.13/x
  3. Step 3: Cross multiply
    73,321.13x = 101,183.15 × 39,787.13
  4. Step 4: Simplify right side
    73,321.13x = 4,025,787,142.86
  5. Step 5: Solve for x
    x = 4,025,787,142.86/73,321.13
  6. Step 6: Final answer
    x = 54,906.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.