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Finding the Fourth Proportional to 73,565.88, 110,349.09 and 18,161.88

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Solution

The fourth proportional to 73,565.88, 110,349.09 and 18,161.88 is: 27,242.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,565.88 : 110,349.09 = 18,161.88 : x
  2. Step 2: Convert to fraction form
    73,565.88/110,349.09 = 18,161.88/x
  3. Step 3: Cross multiply
    73,565.88x = 110,349.09 × 18,161.88
  4. Step 4: Simplify right side
    73,565.88x = 2,004,146,930.69
  5. Step 5: Solve for x
    x = 2,004,146,930.69/73,565.88
  6. Step 6: Final answer
    x = 27,242.89

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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.