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Finding the Fourth Proportional to 111,930.78, 167,896.20 and 37,030.80

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Solution

The fourth proportional to 111,930.78, 167,896.20 and 37,030.80 is: 55,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,930.78 : 167,896.20 = 37,030.80 : x
  2. Step 2: Convert to fraction form
    111,930.78/167,896.20 = 37,030.80/x
  3. Step 3: Cross multiply
    111,930.78x = 167,896.20 × 37,030.80
  4. Step 4: Simplify right side
    111,930.78x = 6,217,330,602.96
  5. Step 5: Solve for x
    x = 6,217,330,602.96/111,930.78
  6. Step 6: Final answer
    x = 55,546.21

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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.