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Finding the Fourth Proportional to 73,107.74, 100,886.64 and 41,279.60

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Solution

The fourth proportional to 73,107.74, 100,886.64 and 41,279.60 is: 56,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,107.74 : 100,886.64 = 41,279.60 : x
  2. Step 2: Convert to fraction form
    73,107.74/100,886.64 = 41,279.60/x
  3. Step 3: Cross multiply
    73,107.74x = 100,886.64 × 41,279.60
  4. Step 4: Simplify right side
    73,107.74x = 4,164,560,144.54
  5. Step 5: Solve for x
    x = 4,164,560,144.54/73,107.74
  6. Step 6: Final answer
    x = 56,964.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.