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Finding the Fourth Proportional to 286,601.94, 395,387.82 and 178,984.98

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Solution

The fourth proportional to 286,601.94, 395,387.82 and 178,984.98 is: 246,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,601.94 : 395,387.82 = 178,984.98 : x
  2. Step 2: Convert to fraction form
    286,601.94/395,387.82 = 178,984.98/x
  3. Step 3: Cross multiply
    286,601.94x = 395,387.82 × 178,984.98
  4. Step 4: Simplify right side
    286,601.94x = 70,768,481,054.94
  5. Step 5: Solve for x
    x = 70,768,481,054.94/286,601.94
  6. Step 6: Final answer
    x = 246,922.55

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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.