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Finding the Fourth Proportional to 351,391.80, 484,914.81 and 190,245.54

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Solution

The fourth proportional to 351,391.80, 484,914.81 and 190,245.54 is: 262,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,391.80 : 484,914.81 = 190,245.54 : x
  2. Step 2: Convert to fraction form
    351,391.80/484,914.81 = 190,245.54/x
  3. Step 3: Cross multiply
    351,391.80x = 484,914.81 × 190,245.54
  4. Step 4: Simplify right side
    351,391.80x = 92,252,879,882.45
  5. Step 5: Solve for x
    x = 92,252,879,882.45/351,391.80
  6. Step 6: Final answer
    x = 262,535.66

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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.