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Finding the Fourth Proportional to 111,229.60, 166,844.40 and 49,021.60

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Solution

The fourth proportional to 111,229.60, 166,844.40 and 49,021.60 is: 73,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,229.60 : 166,844.40 = 49,021.60 : x
  2. Step 2: Convert to fraction form
    111,229.60/166,844.40 = 49,021.60/x
  3. Step 3: Cross multiply
    111,229.60x = 166,844.40 × 49,021.60
  4. Step 4: Simplify right side
    111,229.60x = 8,178,979,439.04
  5. Step 5: Solve for x
    x = 8,178,979,439.04/111,229.60
  6. Step 6: Final answer
    x = 73,532.40

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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.