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Finding the Fourth Proportional to 199,863.05, 299,912.63 and 73,591.94

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Solution

The fourth proportional to 199,863.05, 299,912.63 and 73,591.94 is: 110,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,863.05 : 299,912.63 = 73,591.94 : x
  2. Step 2: Convert to fraction form
    199,863.05/299,912.63 = 73,591.94/x
  3. Step 3: Cross multiply
    199,863.05x = 299,912.63 × 73,591.94
  4. Step 4: Simplify right side
    199,863.05x = 22,071,152,654.02
  5. Step 5: Solve for x
    x = 22,071,152,654.02/199,863.05
  6. Step 6: Final answer
    x = 110,431.38

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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.