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Finding the Fourth Proportional to 111,272.60, 166,908.90 and 49,064.60

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Solution

The fourth proportional to 111,272.60, 166,908.90 and 49,064.60 is: 73,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,272.60 : 166,908.90 = 49,064.60 : x
  2. Step 2: Convert to fraction form
    111,272.60/166,908.90 = 49,064.60/x
  3. Step 3: Cross multiply
    111,272.60x = 166,908.90 × 49,064.60
  4. Step 4: Simplify right side
    111,272.60x = 8,189,318,414.94
  5. Step 5: Solve for x
    x = 8,189,318,414.94/111,272.60
  6. Step 6: Final answer
    x = 73,596.90

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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.