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Finding the Fourth Proportional to 144,809.20, 217,408.20 and 92,450.80

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Solution

The fourth proportional to 144,809.20, 217,408.20 and 92,450.80 is: 138,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,809.20 : 217,408.20 = 92,450.80 : x
  2. Step 2: Convert to fraction form
    144,809.20/217,408.20 = 92,450.80/x
  3. Step 3: Cross multiply
    144,809.20x = 217,408.20 × 92,450.80
  4. Step 4: Simplify right side
    144,809.20x = 20,099,562,016.56
  5. Step 5: Solve for x
    x = 20,099,562,016.56/144,809.20
  6. Step 6: Final answer
    x = 138,800.31

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1.5x scale

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.