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Finding the Fourth Proportional to 77,353.35, 106,755.18 and 43,361.88

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Solution

The fourth proportional to 77,353.35, 106,755.18 and 43,361.88 is: 59,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,353.35 : 106,755.18 = 43,361.88 : x
  2. Step 2: Convert to fraction form
    77,353.35/106,755.18 = 43,361.88/x
  3. Step 3: Cross multiply
    77,353.35x = 106,755.18 × 43,361.88
  4. Step 4: Simplify right side
    77,353.35x = 4,629,105,304.54
  5. Step 5: Solve for x
    x = 4,629,105,304.54/77,353.35
  6. Step 6: Final answer
    x = 59,843.63

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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.