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Finding the Fourth Proportional to 73,289.79, 109,809.41 and 40,033.22

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Solution

The fourth proportional to 73,289.79, 109,809.41 and 40,033.22 is: 59,981.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,289.79 : 109,809.41 = 40,033.22 : x
  2. Step 2: Convert to fraction form
    73,289.79/109,809.41 = 40,033.22/x
  3. Step 3: Cross multiply
    73,289.79x = 109,809.41 × 40,033.22
  4. Step 4: Simplify right side
    73,289.79x = 4,396,023,519.39
  5. Step 5: Solve for x
    x = 4,396,023,519.39/73,289.79
  6. Step 6: Final answer
    x = 59,981.39

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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.