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Finding the Fourth Proportional to 348,137.66, 480,324.33 and 225,436.03

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Solution

The fourth proportional to 348,137.66, 480,324.33 and 225,436.03 is: 311,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,137.66 : 480,324.33 = 225,436.03 : x
  2. Step 2: Convert to fraction form
    348,137.66/480,324.33 = 225,436.03/x
  3. Step 3: Cross multiply
    348,137.66x = 480,324.33 × 225,436.03
  4. Step 4: Simplify right side
    348,137.66x = 108,282,408,866.80
  5. Step 5: Solve for x
    x = 108,282,408,866.80/348,137.66
  6. Step 6: Final answer
    x = 311,033.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.