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Finding the Fourth Proportional to 111,230.28, 166,729.37 and 55,035.32

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Solution

The fourth proportional to 111,230.28, 166,729.37 and 55,035.32 is: 82,495.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,230.28 : 166,729.37 = 55,035.32 : x
  2. Step 2: Convert to fraction form
    111,230.28/166,729.37 = 55,035.32/x
  3. Step 3: Cross multiply
    111,230.28x = 166,729.37 × 55,035.32
  4. Step 4: Simplify right side
    111,230.28x = 9,176,003,122.52
  5. Step 5: Solve for x
    x = 9,176,003,122.52/111,230.28
  6. Step 6: Final answer
    x = 82,495.55

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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.