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Finding the Fourth Proportional to 29,921,428.80, 44,770,168.80 and 19,843,732.80

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Solution

The fourth proportional to 29,921,428.80, 44,770,168.80 and 19,843,732.80 is: 29,691,338.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,921,428.80 : 44,770,168.80 = 19,843,732.80 : x
  2. Step 2: Convert to fraction form
    29,921,428.80/44,770,168.80 = 19,843,732.80/x
  3. Step 3: Cross multiply
    29,921,428.80x = 44,770,168.80 × 19,843,732.80
  4. Step 4: Simplify right side
    29,921,428.80x = 888,407,267,078,096.62
  5. Step 5: Solve for x
    x = 888,407,267,078,096.62/29,921,428.80
  6. Step 6: Final answer
    x = 29,691,338.37

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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.