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Finding the Fourth Proportional to 418,772.44, 628,162.35 and 119,252.77

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Solution

The fourth proportional to 418,772.44, 628,162.35 and 119,252.77 is: 178,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,772.44 : 628,162.35 = 119,252.77 : x
  2. Step 2: Convert to fraction form
    418,772.44/628,162.35 = 119,252.77/x
  3. Step 3: Cross multiply
    418,772.44x = 628,162.35 × 119,252.77
  4. Step 4: Simplify right side
    418,772.44x = 74,910,100,247.21
  5. Step 5: Solve for x
    x = 74,910,100,247.21/418,772.44
  6. Step 6: Final answer
    x = 178,880.21

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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.