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Finding the Fourth Proportional to 133,183.82, 183,797.62 and 72,755.46

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Solution

The fourth proportional to 133,183.82, 183,797.62 and 72,755.46 is: 100,404.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,183.82 : 183,797.62 = 72,755.46 : x
  2. Step 2: Convert to fraction form
    133,183.82/183,797.62 = 72,755.46/x
  3. Step 3: Cross multiply
    133,183.82x = 183,797.62 × 72,755.46
  4. Step 4: Simplify right side
    133,183.82x = 13,372,280,390.01
  5. Step 5: Solve for x
    x = 13,372,280,390.01/133,183.82
  6. Step 6: Final answer
    x = 100,404.69

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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.