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Finding the Fourth Proportional to 44,287,811.20, 66,431,716.80 and 12,375,107.20

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Solution

The fourth proportional to 44,287,811.20, 66,431,716.80 and 12,375,107.20 is: 18,562,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,287,811.20 : 66,431,716.80 = 12,375,107.20 : x
  2. Step 2: Convert to fraction form
    44,287,811.20/66,431,716.80 = 12,375,107.20/x
  3. Step 3: Cross multiply
    44,287,811.20x = 66,431,716.80 × 12,375,107.20
  4. Step 4: Simplify right side
    44,287,811.20x = 822,099,616,880,040.88
  5. Step 5: Solve for x
    x = 822,099,616,880,040.88/44,287,811.20
  6. Step 6: Final answer
    x = 18,562,660.80

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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.