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Finding the Fourth Proportional to 67,108.29, 100,674.58 and 27,643.87

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Solution

The fourth proportional to 67,108.29, 100,674.58 and 27,643.87 is: 41,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,108.29 : 100,674.58 = 27,643.87 : x
  2. Step 2: Convert to fraction form
    67,108.29/100,674.58 = 27,643.87/x
  3. Step 3: Cross multiply
    67,108.29x = 100,674.58 × 27,643.87
  4. Step 4: Simplify right side
    67,108.29x = 2,783,035,001.82
  5. Step 5: Solve for x
    x = 2,783,035,001.82/67,108.29
  6. Step 6: Final answer
    x = 41,470.81

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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.