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Finding the Fourth Proportional to 74,993,584.52, 112,479,010.84 and 20,410,423.49

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Solution

The fourth proportional to 74,993,584.52, 112,479,010.84 and 20,410,423.49 is: 30,612,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,993,584.52 : 112,479,010.84 = 20,410,423.49 : x
  2. Step 2: Convert to fraction form
    74,993,584.52/112,479,010.84 = 20,410,423.49/x
  3. Step 3: Cross multiply
    74,993,584.52x = 112,479,010.84 × 20,410,423.49
  4. Step 4: Simplify right side
    74,993,584.52x = 2,295,744,244,597,363.50
  5. Step 5: Solve for x
    x = 2,295,744,244,597,363.50/74,993,584.52
  6. Step 6: Final answer
    x = 30,612,541.85

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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.