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Finding the Fourth Proportional to 73,172.48, 109,724.10 and 33,717.92

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Solution

The fourth proportional to 73,172.48, 109,724.10 and 33,717.92 is: 50,560.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,172.48 : 109,724.10 = 33,717.92 : x
  2. Step 2: Convert to fraction form
    73,172.48/109,724.10 = 33,717.92/x
  3. Step 3: Cross multiply
    73,172.48x = 109,724.10 × 33,717.92
  4. Step 4: Simplify right side
    73,172.48x = 3,699,668,425.87
  5. Step 5: Solve for x
    x = 3,699,668,425.87/73,172.48
  6. Step 6: Final answer
    x = 50,560.93

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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.