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Finding the Fourth Proportional to 339,426.92, 468,357.12 and 196,159.32

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Solution

The fourth proportional to 339,426.92, 468,357.12 and 196,159.32 is: 270,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,426.92 : 468,357.12 = 196,159.32 : x
  2. Step 2: Convert to fraction form
    339,426.92/468,357.12 = 196,159.32/x
  3. Step 3: Cross multiply
    339,426.92x = 468,357.12 × 196,159.32
  4. Step 4: Simplify right side
    339,426.92x = 91,872,614,176.36
  5. Step 5: Solve for x
    x = 91,872,614,176.36/339,426.92
  6. Step 6: Final answer
    x = 270,669.79

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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.