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Finding the Fourth Proportional to 74,763.21, 103,173.21 and 41,229.21

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Solution

The fourth proportional to 74,763.21, 103,173.21 and 41,229.21 is: 56,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,763.21 : 103,173.21 = 41,229.21 : x
  2. Step 2: Convert to fraction form
    74,763.21/103,173.21 = 41,229.21/x
  3. Step 3: Cross multiply
    74,763.21x = 103,173.21 × 41,229.21
  4. Step 4: Simplify right side
    74,763.21x = 4,253,749,941.46
  5. Step 5: Solve for x
    x = 4,253,749,941.46/74,763.21
  6. Step 6: Final answer
    x = 56,896.30

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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.