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Finding the Fourth Proportional to 103,930.36, 155,911.88 and 33,793.28

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Solution

The fourth proportional to 103,930.36, 155,911.88 and 33,793.28 is: 50,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,930.36 : 155,911.88 = 33,793.28 : x
  2. Step 2: Convert to fraction form
    103,930.36/155,911.88 = 33,793.28/x
  3. Step 3: Cross multiply
    103,930.36x = 155,911.88 × 33,793.28
  4. Step 4: Simplify right side
    103,930.36x = 5,268,773,816.17
  5. Step 5: Solve for x
    x = 5,268,773,816.17/103,930.36
  6. Step 6: Final answer
    x = 50,695.23

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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.