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Finding the Fourth Proportional to 86,571.70, 119,469.13 and 48,845.98

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Solution

The fourth proportional to 86,571.70, 119,469.13 and 48,845.98 is: 67,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,571.70 : 119,469.13 = 48,845.98 : x
  2. Step 2: Convert to fraction form
    86,571.70/119,469.13 = 48,845.98/x
  3. Step 3: Cross multiply
    86,571.70x = 119,469.13 × 48,845.98
  4. Step 4: Simplify right side
    86,571.70x = 5,835,586,734.60
  5. Step 5: Solve for x
    x = 5,835,586,734.60/86,571.70
  6. Step 6: Final answer
    x = 67,407.56

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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.