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Finding the Fourth Proportional to 73,244.61, 109,867.10 and 20,654.37

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Solution

The fourth proportional to 73,244.61, 109,867.10 and 20,654.37 is: 30,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,244.61 : 109,867.10 = 20,654.37 : x
  2. Step 2: Convert to fraction form
    73,244.61/109,867.10 = 20,654.37/x
  3. Step 3: Cross multiply
    73,244.61x = 109,867.10 × 20,654.37
  4. Step 4: Simplify right side
    73,244.61x = 2,269,235,630.96
  5. Step 5: Solve for x
    x = 2,269,235,630.96/73,244.61
  6. Step 6: Final answer
    x = 30,981.61

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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.