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Finding the Fourth Proportional to 99,600, 149,425.60 and 33,936

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Solution

The fourth proportional to 99,600, 149,425.60 and 33,936 is: 50,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,600 : 149,425.60 = 33,936 : x
  2. Step 2: Convert to fraction form
    99,600/149,425.60 = 33,936/x
  3. Step 3: Cross multiply
    99,600x = 149,425.60 × 33,936
  4. Step 4: Simplify right side
    99,600x = 5,070,907,161.60
  5. Step 5: Solve for x
    x = 5,070,907,161.60/99,600
  6. Step 6: Final answer
    x = 50,912.72

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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.