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Finding the Fourth Proportional to 170,099.46, 255,149.28 and 76,495.86

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Solution

The fourth proportional to 170,099.46, 255,149.28 and 76,495.86 is: 114,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,099.46 : 255,149.28 = 76,495.86 : x
  2. Step 2: Convert to fraction form
    170,099.46/255,149.28 = 76,495.86/x
  3. Step 3: Cross multiply
    170,099.46x = 255,149.28 × 76,495.86
  4. Step 4: Simplify right side
    170,099.46x = 19,517,863,601.98
  5. Step 5: Solve for x
    x = 19,517,863,601.98/170,099.46
  6. Step 6: Final answer
    x = 114,743.83

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1.5x scale

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.