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Finding the Fourth Proportional to 34,048,939.20, 51,073,408.80 and 13,843,780.80

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Solution

The fourth proportional to 34,048,939.20, 51,073,408.80 and 13,843,780.80 is: 20,765,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,048,939.20 : 51,073,408.80 = 13,843,780.80 : x
  2. Step 2: Convert to fraction form
    34,048,939.20/51,073,408.80 = 13,843,780.80/x
  3. Step 3: Cross multiply
    34,048,939.20x = 51,073,408.80 × 13,843,780.80
  4. Step 4: Simplify right side
    34,048,939.20x = 707,049,076,135,991
  5. Step 5: Solve for x
    x = 707,049,076,135,991/34,048,939.20
  6. Step 6: Final answer
    x = 20,765,671.20

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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.