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Finding the Fourth Proportional to 73,108.80, 109,517.40 and 41,907.60

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Solution

The fourth proportional to 73,108.80, 109,517.40 and 41,907.60 is: 62,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,108.80 : 109,517.40 = 41,907.60 : x
  2. Step 2: Convert to fraction form
    73,108.80/109,517.40 = 41,907.60/x
  3. Step 3: Cross multiply
    73,108.80x = 109,517.40 × 41,907.60
  4. Step 4: Simplify right side
    73,108.80x = 4,589,611,392.24
  5. Step 5: Solve for x
    x = 4,589,611,392.24/73,108.80
  6. Step 6: Final answer
    x = 62,777.82

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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.