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Finding the Fourth Proportional to 303,655.50, 419,044.62 and 169,519.50

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Solution

The fourth proportional to 303,655.50, 419,044.62 and 169,519.50 is: 233,936.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,655.50 : 419,044.62 = 169,519.50 : x
  2. Step 2: Convert to fraction form
    303,655.50/419,044.62 = 169,519.50/x
  3. Step 3: Cross multiply
    303,655.50x = 419,044.62 × 169,519.50
  4. Step 4: Simplify right side
    303,655.50x = 71,036,234,460.09
  5. Step 5: Solve for x
    x = 71,036,234,460.09/303,655.50
  6. Step 6: Final answer
    x = 233,936.93

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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.