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Finding the Fourth Proportional to 303,968.95, 419,464.09 and 167,995.87

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Solution

The fourth proportional to 303,968.95, 419,464.09 and 167,995.87 is: 231,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,968.95 : 419,464.09 = 167,995.87 : x
  2. Step 2: Convert to fraction form
    303,968.95/419,464.09 = 167,995.87/x
  3. Step 3: Cross multiply
    303,968.95x = 419,464.09 × 167,995.87
  4. Step 4: Simplify right side
    303,968.95x = 70,468,234,733.31
  5. Step 5: Solve for x
    x = 70,468,234,733.31/303,968.95
  6. Step 6: Final answer
    x = 231,827.08

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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.