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Finding the Fourth Proportional to 463,252.80, 694,879.20 and 130,828.80

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Solution

The fourth proportional to 463,252.80, 694,879.20 and 130,828.80 is: 196,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,252.80 : 694,879.20 = 130,828.80 : x
  2. Step 2: Convert to fraction form
    463,252.80/694,879.20 = 130,828.80/x
  3. Step 3: Cross multiply
    463,252.80x = 694,879.20 × 130,828.80
  4. Step 4: Simplify right side
    463,252.80x = 90,910,211,880.96
  5. Step 5: Solve for x
    x = 90,910,211,880.96/463,252.80
  6. Step 6: Final answer
    x = 196,243.20

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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.