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Finding the Fourth Proportional to 66,926.53, 100,339.86 and 40,266.27

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Solution

The fourth proportional to 66,926.53, 100,339.86 and 40,266.27 is: 60,369.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,926.53 : 100,339.86 = 40,266.27 : x
  2. Step 2: Convert to fraction form
    66,926.53/100,339.86 = 40,266.27/x
  3. Step 3: Cross multiply
    66,926.53x = 100,339.86 × 40,266.27
  4. Step 4: Simplify right side
    66,926.53x = 4,040,311,894.52
  5. Step 5: Solve for x
    x = 4,040,311,894.52/66,926.53
  6. Step 6: Final answer
    x = 60,369.37

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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.