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Finding the Fourth Proportional to 111,918.70, 167,829.45 and 37,009.90

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Solution

The fourth proportional to 111,918.70, 167,829.45 and 37,009.90 is: 55,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,918.70 : 167,829.45 = 37,009.90 : x
  2. Step 2: Convert to fraction form
    111,918.70/167,829.45 = 37,009.90/x
  3. Step 3: Cross multiply
    111,918.70x = 167,829.45 × 37,009.90
  4. Step 4: Simplify right side
    111,918.70x = 6,211,351,161.56
  5. Step 5: Solve for x
    x = 6,211,351,161.56/111,918.70
  6. Step 6: Final answer
    x = 55,498.78

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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.