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Finding the Fourth Proportional to 69,894,799.20, 104,842,198.80 and 49,487,464.80

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Solution

The fourth proportional to 69,894,799.20, 104,842,198.80 and 49,487,464.80 is: 74,231,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,894,799.20 : 104,842,198.80 = 49,487,464.80 : x
  2. Step 2: Convert to fraction form
    69,894,799.20/104,842,198.80 = 49,487,464.80/x
  3. Step 3: Cross multiply
    69,894,799.20x = 104,842,198.80 × 49,487,464.80
  4. Step 4: Simplify right side
    69,894,799.20x = 5,188,374,622,669,602
  5. Step 5: Solve for x
    x = 5,188,374,622,669,602/69,894,799.20
  6. Step 6: Final answer
    x = 74,231,197.20

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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.