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Finding the Fourth Proportional to 363,794.49, 545,558.69 and 139,043.79

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Solution

The fourth proportional to 363,794.49, 545,558.69 and 139,043.79 is: 208,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,794.49 : 545,558.69 = 139,043.79 : x
  2. Step 2: Convert to fraction form
    363,794.49/545,558.69 = 139,043.79/x
  3. Step 3: Cross multiply
    363,794.49x = 545,558.69 × 139,043.79
  4. Step 4: Simplify right side
    363,794.49x = 75,856,548,272.64
  5. Step 5: Solve for x
    x = 75,856,548,272.64/363,794.49
  6. Step 6: Final answer
    x = 208,514.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.