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Finding the Fourth Proportional to 170,772.92, 256,171.68 and 65,591.88

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Solution

The fourth proportional to 170,772.92, 256,171.68 and 65,591.88 is: 98,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,772.92 : 256,171.68 = 65,591.88 : x
  2. Step 2: Convert to fraction form
    170,772.92/256,171.68 = 65,591.88/x
  3. Step 3: Cross multiply
    170,772.92x = 256,171.68 × 65,591.88
  4. Step 4: Simplify right side
    170,772.92x = 16,802,782,093.96
  5. Step 5: Solve for x
    x = 16,802,782,093.96/170,772.92
  6. Step 6: Final answer
    x = 98,392.55

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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.