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Finding the Fourth Proportional to 373,408.80, 560,048.40 and 136,629.60

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Solution

The fourth proportional to 373,408.80, 560,048.40 and 136,629.60 is: 204,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,408.80 : 560,048.40 = 136,629.60 : x
  2. Step 2: Convert to fraction form
    373,408.80/560,048.40 = 136,629.60/x
  3. Step 3: Cross multiply
    373,408.80x = 560,048.40 × 136,629.60
  4. Step 4: Simplify right side
    373,408.80x = 76,519,188,872.64
  5. Step 5: Solve for x
    x = 76,519,188,872.64/373,408.80
  6. Step 6: Final answer
    x = 204,920.69

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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.