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Finding the Fourth Proportional to 111,119.78, 166,645.08 and 37,230.50

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Solution

The fourth proportional to 111,119.78, 166,645.08 and 37,230.50 is: 55,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,119.78 : 166,645.08 = 37,230.50 : x
  2. Step 2: Convert to fraction form
    111,119.78/166,645.08 = 37,230.50/x
  3. Step 3: Cross multiply
    111,119.78x = 166,645.08 × 37,230.50
  4. Step 4: Simplify right side
    111,119.78x = 6,204,279,650.94
  5. Step 5: Solve for x
    x = 6,204,279,650.94/111,119.78
  6. Step 6: Final answer
    x = 55,834.16

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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.