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Finding the Fourth Proportional to 170,767.69, 256,163.92 and 65,586.66

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Solution

The fourth proportional to 170,767.69, 256,163.92 and 65,586.66 is: 98,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,767.69 : 256,163.92 = 65,586.66 : x
  2. Step 2: Convert to fraction form
    170,767.69/256,163.92 = 65,586.66/x
  3. Step 3: Cross multiply
    170,767.69x = 256,163.92 × 65,586.66
  4. Step 4: Simplify right side
    170,767.69x = 16,800,936,241.65
  5. Step 5: Solve for x
    x = 16,800,936,241.65/170,767.69
  6. Step 6: Final answer
    x = 98,384.75

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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.