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Finding the Fourth Proportional to 111,108.98, 166,624.04 and 40,012.54

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Solution

The fourth proportional to 111,108.98, 166,624.04 and 40,012.54 is: 60,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,108.98 : 166,624.04 = 40,012.54 : x
  2. Step 2: Convert to fraction form
    111,108.98/166,624.04 = 40,012.54/x
  3. Step 3: Cross multiply
    111,108.98x = 166,624.04 × 40,012.54
  4. Step 4: Simplify right side
    111,108.98x = 6,667,050,748.93
  5. Step 5: Solve for x
    x = 6,667,050,748.93/111,108.98
  6. Step 6: Final answer
    x = 60,004.61

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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.