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Finding the Fourth Proportional to 66,512.67, 99,769.02 and 44,369.31

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Solution

The fourth proportional to 66,512.67, 99,769.02 and 44,369.31 is: 66,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,512.67 : 99,769.02 = 44,369.31 : x
  2. Step 2: Convert to fraction form
    66,512.67/99,769.02 = 44,369.31/x
  3. Step 3: Cross multiply
    66,512.67x = 99,769.02 × 44,369.31
  4. Step 4: Simplify right side
    66,512.67x = 4,426,682,576.78
  5. Step 5: Solve for x
    x = 4,426,682,576.78/66,512.67
  6. Step 6: Final answer
    x = 66,553.98

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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.