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Finding the Fourth Proportional to 73,569, 110,353.86 and 18,165

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Solution

The fourth proportional to 73,569, 110,353.86 and 18,165 is: 27,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,569 : 110,353.86 = 18,165 : x
  2. Step 2: Convert to fraction form
    73,569/110,353.86 = 18,165/x
  3. Step 3: Cross multiply
    73,569x = 110,353.86 × 18,165
  4. Step 4: Simplify right side
    73,569x = 2,004,577,866.90
  5. Step 5: Solve for x
    x = 2,004,577,866.90/73,569
  6. Step 6: Final answer
    x = 27,247.59

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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.