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Finding the Fourth Proportional to 66,604.61, 99,906.92 and 27,164.81

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Solution

The fourth proportional to 66,604.61, 99,906.92 and 27,164.81 is: 40,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604.61 : 99,906.92 = 27,164.81 : x
  2. Step 2: Convert to fraction form
    66,604.61/99,906.92 = 27,164.81/x
  3. Step 3: Cross multiply
    66,604.61x = 99,906.92 × 27,164.81
  4. Step 4: Simplify right side
    66,604.61x = 2,713,951,864.13
  5. Step 5: Solve for x
    x = 2,713,951,864.13/66,604.61
  6. Step 6: Final answer
    x = 40,747.21

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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.