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Finding the Fourth Proportional to 99,771.92, 149,698.92 and 73,253.34

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Solution

The fourth proportional to 99,771.92, 149,698.92 and 73,253.34 is: 109,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,771.92 : 149,698.92 = 73,253.34 : x
  2. Step 2: Convert to fraction form
    99,771.92/149,698.92 = 73,253.34/x
  3. Step 3: Cross multiply
    99,771.92x = 149,698.92 × 73,253.34
  4. Step 4: Simplify right side
    99,771.92x = 10,965,945,884.39
  5. Step 5: Solve for x
    x = 10,965,945,884.39/99,771.92
  6. Step 6: Final answer
    x = 109,910.14

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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.