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Finding the Fourth Proportional to 74,912.52, 103,377.30 and 41,377.80

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Solution

The fourth proportional to 74,912.52, 103,377.30 and 41,377.80 is: 57,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,912.52 : 103,377.30 = 41,377.80 : x
  2. Step 2: Convert to fraction form
    74,912.52/103,377.30 = 41,377.80/x
  3. Step 3: Cross multiply
    74,912.52x = 103,377.30 × 41,377.80
  4. Step 4: Simplify right side
    74,912.52x = 4,277,525,243.94
  5. Step 5: Solve for x
    x = 4,277,525,243.94/74,912.52
  6. Step 6: Final answer
    x = 57,100.27

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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.