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Finding the Fourth Proportional to 73,230.15, 109,845.21 and 26,472.09

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Solution

The fourth proportional to 73,230.15, 109,845.21 and 26,472.09 is: 39,708.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,230.15 : 109,845.21 = 26,472.09 : x
  2. Step 2: Convert to fraction form
    73,230.15/109,845.21 = 26,472.09/x
  3. Step 3: Cross multiply
    73,230.15x = 109,845.21 × 26,472.09
  4. Step 4: Simplify right side
    73,230.15x = 2,907,832,285.19
  5. Step 5: Solve for x
    x = 2,907,832,285.19/73,230.15
  6. Step 6: Final answer
    x = 39,708.13

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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.