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Finding the Fourth Proportional to 111,043.87, 166,579.65 and 36,171.59

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Solution

The fourth proportional to 111,043.87, 166,579.65 and 36,171.59 is: 54,261.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,043.87 : 166,579.65 = 36,171.59 : x
  2. Step 2: Convert to fraction form
    111,043.87/166,579.65 = 36,171.59/x
  3. Step 3: Cross multiply
    111,043.87x = 166,579.65 × 36,171.59
  4. Step 4: Simplify right side
    111,043.87x = 6,025,450,802.14
  5. Step 5: Solve for x
    x = 6,025,450,802.14/111,043.87
  6. Step 6: Final answer
    x = 54,261.89

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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.