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Finding the Fourth Proportional to 73,419.75, 101,310.66 and 43,198.43

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Solution

The fourth proportional to 73,419.75, 101,310.66 and 43,198.43 is: 59,608.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,419.75 : 101,310.66 = 43,198.43 : x
  2. Step 2: Convert to fraction form
    73,419.75/101,310.66 = 43,198.43/x
  3. Step 3: Cross multiply
    73,419.75x = 101,310.66 × 43,198.43
  4. Step 4: Simplify right side
    73,419.75x = 4,376,460,947.71
  5. Step 5: Solve for x
    x = 4,376,460,947.71/73,419.75
  6. Step 6: Final answer
    x = 59,608.77

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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.