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Finding the Fourth Proportional to 170,576.66, 255,755.51 and 70,805.72

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Solution

The fourth proportional to 170,576.66, 255,755.51 and 70,805.72 is: 106,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,576.66 : 255,755.51 = 70,805.72 : x
  2. Step 2: Convert to fraction form
    170,576.66/255,755.51 = 70,805.72/x
  3. Step 3: Cross multiply
    170,576.66x = 255,755.51 × 70,805.72
  4. Step 4: Simplify right side
    170,576.66x = 18,108,952,675.49
  5. Step 5: Solve for x
    x = 18,108,952,675.49/170,576.66
  6. Step 6: Final answer
    x = 106,163.13

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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.