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Finding the Fourth Proportional to 92,923.70, 128,234.49 and 50,481.86

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Solution

The fourth proportional to 92,923.70, 128,234.49 and 50,481.86 is: 69,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,923.70 : 128,234.49 = 50,481.86 : x
  2. Step 2: Convert to fraction form
    92,923.70/128,234.49 = 50,481.86/x
  3. Step 3: Cross multiply
    92,923.70x = 128,234.49 × 50,481.86
  4. Step 4: Simplify right side
    92,923.70x = 6,473,515,571.35
  5. Step 5: Solve for x
    x = 6,473,515,571.35/92,923.70
  6. Step 6: Final answer
    x = 69,664.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.