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Finding the Fourth Proportional to 366,961.42, 550,479.92 and 127,074.86

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Solution

The fourth proportional to 366,961.42, 550,479.92 and 127,074.86 is: 190,625.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,961.42 : 550,479.92 = 127,074.86 : x
  2. Step 2: Convert to fraction form
    366,961.42/550,479.92 = 127,074.86/x
  3. Step 3: Cross multiply
    366,961.42x = 550,479.92 × 127,074.86
  4. Step 4: Simplify right side
    366,961.42x = 69,952,157,072.92
  5. Step 5: Solve for x
    x = 69,952,157,072.92/366,961.42
  6. Step 6: Final answer
    x = 190,625.37

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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.