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Finding the Fourth Proportional to 73,105.80, 109,512.90 and 41,904.60

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Solution

The fourth proportional to 73,105.80, 109,512.90 and 41,904.60 is: 62,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,105.80 : 109,512.90 = 41,904.60 : x
  2. Step 2: Convert to fraction form
    73,105.80/109,512.90 = 41,904.60/x
  3. Step 3: Cross multiply
    73,105.80x = 109,512.90 × 41,904.60
  4. Step 4: Simplify right side
    73,105.80x = 4,589,094,269.34
  5. Step 5: Solve for x
    x = 4,589,094,269.34/73,105.80
  6. Step 6: Final answer
    x = 62,773.33

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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.