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Finding the Fourth Proportional to 376,725.75, 519,881.75 and 206,970.81

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Solution

The fourth proportional to 376,725.75, 519,881.75 and 206,970.81 is: 285,619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,725.75 : 519,881.75 = 206,970.81 : x
  2. Step 2: Convert to fraction form
    376,725.75/519,881.75 = 206,970.81/x
  3. Step 3: Cross multiply
    376,725.75x = 519,881.75 × 206,970.81
  4. Step 4: Simplify right side
    376,725.75x = 107,600,345,866.86
  5. Step 5: Solve for x
    x = 107,600,345,866.86/376,725.75
  6. Step 6: Final answer
    x = 285,619.83

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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.