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Finding the Fourth Proportional to 344,879.92, 475,975.73 and 208,909.88

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Solution

The fourth proportional to 344,879.92, 475,975.73 and 208,909.88 is: 288,320.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,879.92 : 475,975.73 = 208,909.88 : x
  2. Step 2: Convert to fraction form
    344,879.92/475,975.73 = 208,909.88/x
  3. Step 3: Cross multiply
    344,879.92x = 475,975.73 × 208,909.88
  4. Step 4: Simplify right side
    344,879.92x = 99,436,029,212.78
  5. Step 5: Solve for x
    x = 99,436,029,212.78/344,879.92
  6. Step 6: Final answer
    x = 288,320.73

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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.