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Finding the Fourth Proportional to 73,358.87, 109,965.40 and 43,732.31

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Solution

The fourth proportional to 73,358.87, 109,965.40 and 43,732.31 is: 65,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,358.87 : 109,965.40 = 43,732.31 : x
  2. Step 2: Convert to fraction form
    73,358.87/109,965.40 = 43,732.31/x
  3. Step 3: Cross multiply
    73,358.87x = 109,965.40 × 43,732.31
  4. Step 4: Simplify right side
    73,358.87x = 4,809,040,302.92
  5. Step 5: Solve for x
    x = 4,809,040,302.92/73,358.87
  6. Step 6: Final answer
    x = 65,555.00

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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.