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Finding the Fourth Proportional to 103,508.92, 155,296.20 and 36,947.60

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Solution

The fourth proportional to 103,508.92, 155,296.20 and 36,947.60 is: 55,433.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,508.92 : 155,296.20 = 36,947.60 : x
  2. Step 2: Convert to fraction form
    103,508.92/155,296.20 = 36,947.60/x
  3. Step 3: Cross multiply
    103,508.92x = 155,296.20 × 36,947.60
  4. Step 4: Simplify right side
    103,508.92x = 5,737,821,879.12
  5. Step 5: Solve for x
    x = 5,737,821,879.12/103,508.92
  6. Step 6: Final answer
    x = 55,433.12

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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.