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Finding the Fourth Proportional to 199,367.88, 275,128.14 and 113,327.44

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Solution

The fourth proportional to 199,367.88, 275,128.14 and 113,327.44 is: 156,392.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,367.88 : 275,128.14 = 113,327.44 : x
  2. Step 2: Convert to fraction form
    199,367.88/275,128.14 = 113,327.44/x
  3. Step 3: Cross multiply
    199,367.88x = 275,128.14 × 113,327.44
  4. Step 4: Simplify right side
    199,367.88x = 31,179,567,090.34
  5. Step 5: Solve for x
    x = 31,179,567,090.34/199,367.88
  6. Step 6: Final answer
    x = 156,392.13

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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.