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Finding the Fourth Proportional to 67,193,963.80, 100,809,608.10 and 28,873,835.80

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Solution

The fourth proportional to 67,193,963.80, 100,809,608.10 and 28,873,835.80 is: 43,318,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,193,963.80 : 100,809,608.10 = 28,873,835.80 : x
  2. Step 2: Convert to fraction form
    67,193,963.80/100,809,608.10 = 28,873,835.80/x
  3. Step 3: Cross multiply
    67,193,963.80x = 100,809,608.10 × 28,873,835.80
  4. Step 4: Simplify right side
    67,193,963.80x = 2,910,760,071,341,750
  5. Step 5: Solve for x
    x = 2,910,760,071,341,750/67,193,963.80
  6. Step 6: Final answer
    x = 43,318,773.10

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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.