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Finding the Fourth Proportional to 201,860,178.75, 278,566,832.79 and 109,040,671.71

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Solution

The fourth proportional to 201,860,178.75, 278,566,832.79 and 109,040,671.71 is: 150,476,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,860,178.75 : 278,566,832.79 = 109,040,671.71 : x
  2. Step 2: Convert to fraction form
    201,860,178.75/278,566,832.79 = 109,040,671.71/x
  3. Step 3: Cross multiply
    201,860,178.75x = 278,566,832.79 × 109,040,671.71
  4. Step 4: Simplify right side
    201,860,178.75x = 30,375,114,563,548,852
  5. Step 5: Solve for x
    x = 30,375,114,563,548,852/201,860,178.75
  6. Step 6: Final answer
    x = 150,476,011.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.