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Finding the Fourth Proportional to 74,655.42, 103,024.48 and 41,121.42

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Solution

The fourth proportional to 74,655.42, 103,024.48 and 41,121.42 is: 56,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,655.42 : 103,024.48 = 41,121.42 : x
  2. Step 2: Convert to fraction form
    74,655.42/103,024.48 = 41,121.42/x
  3. Step 3: Cross multiply
    74,655.42x = 103,024.48 × 41,121.42
  4. Step 4: Simplify right side
    74,655.42x = 4,236,512,912.36
  5. Step 5: Solve for x
    x = 4,236,512,912.36/74,655.42
  6. Step 6: Final answer
    x = 56,747.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.