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Finding the Fourth Proportional to 211,992.52, 292,591.04 and 140,375.56

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Solution

The fourth proportional to 211,992.52, 292,591.04 and 140,375.56 is: 193,745.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,992.52 : 292,591.04 = 140,375.56 : x
  2. Step 2: Convert to fraction form
    211,992.52/292,591.04 = 140,375.56/x
  3. Step 3: Cross multiply
    211,992.52x = 292,591.04 × 140,375.56
  4. Step 4: Simplify right side
    211,992.52x = 41,072,631,090.98
  5. Step 5: Solve for x
    x = 41,072,631,090.98/211,992.52
  6. Step 6: Final answer
    x = 193,745.66

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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.