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Finding the Fourth Proportional to 66,799.89, 100,199.39 and 27,356.94

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Solution

The fourth proportional to 66,799.89, 100,199.39 and 27,356.94 is: 41,035.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,799.89 : 100,199.39 = 27,356.94 : x
  2. Step 2: Convert to fraction form
    66,799.89/100,199.39 = 27,356.94/x
  3. Step 3: Cross multiply
    66,799.89x = 100,199.39 × 27,356.94
  4. Step 4: Simplify right side
    66,799.89x = 2,741,148,563.48
  5. Step 5: Solve for x
    x = 2,741,148,563.48/66,799.89
  6. Step 6: Final answer
    x = 41,035.23

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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.