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Finding the Fourth Proportional to 69,004.62, 95,243.16 and 42,169.74

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Solution

The fourth proportional to 69,004.62, 95,243.16 and 42,169.74 is: 58,204.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,004.62 : 95,243.16 = 42,169.74 : x
  2. Step 2: Convert to fraction form
    69,004.62/95,243.16 = 42,169.74/x
  3. Step 3: Cross multiply
    69,004.62x = 95,243.16 × 42,169.74
  4. Step 4: Simplify right side
    69,004.62x = 4,016,379,293.98
  5. Step 5: Solve for x
    x = 4,016,379,293.98/69,004.62
  6. Step 6: Final answer
    x = 58,204.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.