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Finding the Fourth Proportional to 170,576.73, 255,755.60 and 70,805.79

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Solution

The fourth proportional to 170,576.73, 255,755.60 and 70,805.79 is: 106,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,576.73 : 255,755.60 = 70,805.79 : x
  2. Step 2: Convert to fraction form
    170,576.73/255,755.60 = 70,805.79/x
  3. Step 3: Cross multiply
    170,576.73x = 255,755.60 × 70,805.79
  4. Step 4: Simplify right side
    170,576.73x = 18,108,977,304.92
  5. Step 5: Solve for x
    x = 18,108,977,304.92/170,576.73
  6. Step 6: Final answer
    x = 106,163.23

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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.