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Finding the Fourth Proportional to 73,169.76, 109,743.40 and 23,243.40

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Solution

The fourth proportional to 73,169.76, 109,743.40 and 23,243.40 is: 34,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,169.76 : 109,743.40 = 23,243.40 : x
  2. Step 2: Convert to fraction form
    73,169.76/109,743.40 = 23,243.40/x
  3. Step 3: Cross multiply
    73,169.76x = 109,743.40 × 23,243.40
  4. Step 4: Simplify right side
    73,169.76x = 2,550,809,743.56
  5. Step 5: Solve for x
    x = 2,550,809,743.56/73,169.76
  6. Step 6: Final answer
    x = 34,861.53

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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.