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Finding the Fourth Proportional to 91,847.70, 137,739.15 and 41,951.70

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Solution

The fourth proportional to 91,847.70, 137,739.15 and 41,951.70 is: 62,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,847.70 : 137,739.15 = 41,951.70 : x
  2. Step 2: Convert to fraction form
    91,847.70/137,739.15 = 41,951.70/x
  3. Step 3: Cross multiply
    91,847.70x = 137,739.15 × 41,951.70
  4. Step 4: Simplify right side
    91,847.70x = 5,778,391,499.06
  5. Step 5: Solve for x
    x = 5,778,391,499.06/91,847.70
  6. Step 6: Final answer
    x = 62,912.75

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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.