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Finding the Fourth Proportional to 111,220.80, 166,840.44 and 36,339.36

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Solution

The fourth proportional to 111,220.80, 166,840.44 and 36,339.36 is: 54,512.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.80 : 166,840.44 = 36,339.36 : x
  2. Step 2: Convert to fraction form
    111,220.80/166,840.44 = 36,339.36/x
  3. Step 3: Cross multiply
    111,220.80x = 166,840.44 × 36,339.36
  4. Step 4: Simplify right side
    111,220.80x = 6,062,874,811.72
  5. Step 5: Solve for x
    x = 6,062,874,811.72/111,220.80
  6. Step 6: Final answer
    x = 54,512.06

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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.