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Finding the Fourth Proportional to 106,620.03, 159,815.19 and 54,033.60

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Solution

The fourth proportional to 106,620.03, 159,815.19 and 54,033.60 is: 80,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,620.03 : 159,815.19 = 54,033.60 : x
  2. Step 2: Convert to fraction form
    106,620.03/159,815.19 = 54,033.60/x
  3. Step 3: Cross multiply
    106,620.03x = 159,815.19 × 54,033.60
  4. Step 4: Simplify right side
    106,620.03x = 8,635,390,050.38
  5. Step 5: Solve for x
    x = 8,635,390,050.38/106,620.03
  6. Step 6: Final answer
    x = 80,992.19

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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.