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Finding the Fourth Proportional to 170,766.41, 256,161.90 and 65,585.37

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Solution

The fourth proportional to 170,766.41, 256,161.90 and 65,585.37 is: 98,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,766.41 : 256,161.90 = 65,585.37 : x
  2. Step 2: Convert to fraction form
    170,766.41/256,161.90 = 65,585.37/x
  3. Step 3: Cross multiply
    170,766.41x = 256,161.90 × 65,585.37
  4. Step 4: Simplify right side
    170,766.41x = 16,800,472,991.40
  5. Step 5: Solve for x
    x = 16,800,472,991.40/170,766.41
  6. Step 6: Final answer
    x = 98,382.78

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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.