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Finding the Fourth Proportional to 303,993.09, 455,950.76 and 126,467.01

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Solution

The fourth proportional to 303,993.09, 455,950.76 and 126,467.01 is: 189,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,993.09 : 455,950.76 = 126,467.01 : x
  2. Step 2: Convert to fraction form
    303,993.09/455,950.76 = 126,467.01/x
  3. Step 3: Cross multiply
    303,993.09x = 455,950.76 × 126,467.01
  4. Step 4: Simplify right side
    303,993.09x = 57,662,728,692.09
  5. Step 5: Solve for x
    x = 57,662,728,692.09/303,993.09
  6. Step 6: Final answer
    x = 189,684.34

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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.