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Finding the Fourth Proportional to 76,895.62, 106,115.97 and 43,361.62

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Solution

The fourth proportional to 76,895.62, 106,115.97 and 43,361.62 is: 59,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,895.62 : 106,115.97 = 43,361.62 : x
  2. Step 2: Convert to fraction form
    76,895.62/106,115.97 = 43,361.62/x
  3. Step 3: Cross multiply
    76,895.62x = 106,115.97 × 43,361.62
  4. Step 4: Simplify right side
    76,895.62x = 4,601,360,367.07
  5. Step 5: Solve for x
    x = 4,601,360,367.07/76,895.62
  6. Step 6: Final answer
    x = 59,839.04

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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.