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Finding the Fourth Proportional to 451,850.54, 677,780.68 and 136,310.18

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Solution

The fourth proportional to 451,850.54, 677,780.68 and 136,310.18 is: 204,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,850.54 : 677,780.68 = 136,310.18 : x
  2. Step 2: Convert to fraction form
    451,850.54/677,780.68 = 136,310.18/x
  3. Step 3: Cross multiply
    451,850.54x = 677,780.68 × 136,310.18
  4. Step 4: Simplify right side
    451,850.54x = 92,388,406,491.32
  5. Step 5: Solve for x
    x = 92,388,406,491.32/451,850.54
  6. Step 6: Final answer
    x = 204,466.74

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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.