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Finding the Fourth Proportional to 71,983.89, 107,817.89 and 59,361.66

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Solution

The fourth proportional to 71,983.89, 107,817.89 and 59,361.66 is: 88,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,983.89 : 107,817.89 = 59,361.66 : x
  2. Step 2: Convert to fraction form
    71,983.89/107,817.89 = 59,361.66/x
  3. Step 3: Cross multiply
    71,983.89x = 107,817.89 × 59,361.66
  4. Step 4: Simplify right side
    71,983.89x = 6,400,248,631.29
  5. Step 5: Solve for x
    x = 6,400,248,631.29/71,983.89
  6. Step 6: Final answer
    x = 88,912.24

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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.