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Finding the Fourth Proportional to 339,388.64, 468,329.01 and 196,157.96

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Solution

The fourth proportional to 339,388.64, 468,329.01 and 196,157.96 is: 270,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,388.64 : 468,329.01 = 196,157.96 : x
  2. Step 2: Convert to fraction form
    339,388.64/468,329.01 = 196,157.96/x
  3. Step 3: Cross multiply
    339,388.64x = 468,329.01 × 196,157.96
  4. Step 4: Simplify right side
    339,388.64x = 91,866,463,210.42
  5. Step 5: Solve for x
    x = 91,866,463,210.42/339,388.64
  6. Step 6: Final answer
    x = 270,682.20

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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.