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Finding the Fourth Proportional to 111,317.37, 166,976.05 and 48,987.87

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Solution

The fourth proportional to 111,317.37, 166,976.05 and 48,987.87 is: 73,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,317.37 : 166,976.05 = 48,987.87 : x
  2. Step 2: Convert to fraction form
    111,317.37/166,976.05 = 48,987.87/x
  3. Step 3: Cross multiply
    111,317.37x = 166,976.05 × 48,987.87
  4. Step 4: Simplify right side
    111,317.37x = 8,179,801,312.98
  5. Step 5: Solve for x
    x = 8,179,801,312.98/111,317.37
  6. Step 6: Final answer
    x = 73,481.80

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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.