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Finding the Fourth Proportional to 339,388.55, 468,328.88 and 196,157.87

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Solution

The fourth proportional to 339,388.55, 468,328.88 and 196,157.87 is: 270,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,388.55 : 468,328.88 = 196,157.87 : x
  2. Step 2: Convert to fraction form
    339,388.55/468,328.88 = 196,157.87/x
  3. Step 3: Cross multiply
    339,388.55x = 468,328.88 × 196,157.87
  4. Step 4: Simplify right side
    339,388.55x = 91,866,394,579.50
  5. Step 5: Solve for x
    x = 91,866,394,579.50/339,388.55
  6. Step 6: Final answer
    x = 270,682.07

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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.