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Finding the Fourth Proportional to 66,723.56, 100,083.42 and 16,803.56

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Solution

The fourth proportional to 66,723.56, 100,083.42 and 16,803.56 is: 25,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,723.56 : 100,083.42 = 16,803.56 : x
  2. Step 2: Convert to fraction form
    66,723.56/100,083.42 = 16,803.56/x
  3. Step 3: Cross multiply
    66,723.56x = 100,083.42 × 16,803.56
  4. Step 4: Simplify right side
    66,723.56x = 1,681,757,752.98
  5. Step 5: Solve for x
    x = 1,681,757,752.98/66,723.56
  6. Step 6: Final answer
    x = 25,204.86

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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.