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Finding the Fourth Proportional to 339,635.94, 509,424.14 and 114,991.25

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Solution

The fourth proportional to 339,635.94, 509,424.14 and 114,991.25 is: 172,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,635.94 : 509,424.14 = 114,991.25 : x
  2. Step 2: Convert to fraction form
    339,635.94/509,424.14 = 114,991.25/x
  3. Step 3: Cross multiply
    339,635.94x = 509,424.14 × 114,991.25
  4. Step 4: Simplify right side
    339,635.94x = 58,579,315,732.31
  5. Step 5: Solve for x
    x = 58,579,315,732.31/339,635.94
  6. Step 6: Final answer
    x = 172,476.79

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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.