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Finding the Fourth Proportional to 49,951,996.80, 74,930,068.80 and 15,872,380.80

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Solution

The fourth proportional to 49,951,996.80, 74,930,068.80 and 15,872,380.80 is: 23,809,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,951,996.80 : 74,930,068.80 = 15,872,380.80 : x
  2. Step 2: Convert to fraction form
    49,951,996.80/74,930,068.80 = 15,872,380.80/x
  3. Step 3: Cross multiply
    49,951,996.80x = 74,930,068.80 × 15,872,380.80
  4. Step 4: Simplify right side
    49,951,996.80x = 1,189,318,585,363,799
  5. Step 5: Solve for x
    x = 1,189,318,585,363,799/49,951,996.80
  6. Step 6: Final answer
    x = 23,809,230.09

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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.