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Finding the Fourth Proportional to 71,137.25, 98,179.23 and 40,922.01

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Solution

The fourth proportional to 71,137.25, 98,179.23 and 40,922.01 is: 56,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,137.25 : 98,179.23 = 40,922.01 : x
  2. Step 2: Convert to fraction form
    71,137.25/98,179.23 = 40,922.01/x
  3. Step 3: Cross multiply
    71,137.25x = 98,179.23 × 40,922.01
  4. Step 4: Simplify right side
    71,137.25x = 4,017,691,431.85
  5. Step 5: Solve for x
    x = 4,017,691,431.85/71,137.25
  6. Step 6: Final answer
    x = 56,478.03

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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.