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Finding the Fourth Proportional to 61,343.44, 91,921.32 and 41,278.66

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Solution

The fourth proportional to 61,343.44, 91,921.32 and 41,278.66 is: 61,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,343.44 : 91,921.32 = 41,278.66 : x
  2. Step 2: Convert to fraction form
    61,343.44/91,921.32 = 41,278.66/x
  3. Step 3: Cross multiply
    61,343.44x = 91,921.32 × 41,278.66
  4. Step 4: Simplify right side
    61,343.44x = 3,794,388,915.03
  5. Step 5: Solve for x
    x = 3,794,388,915.03/61,343.44
  6. Step 6: Final answer
    x = 61,854.84

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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.