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Finding the Fourth Proportional to 199,635.78, 275,169.07 and 141,511.98

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Solution

The fourth proportional to 199,635.78, 275,169.07 and 141,511.98 is: 195,053.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,635.78 : 275,169.07 = 141,511.98 : x
  2. Step 2: Convert to fraction form
    199,635.78/275,169.07 = 141,511.98/x
  3. Step 3: Cross multiply
    199,635.78x = 275,169.07 × 141,511.98
  4. Step 4: Simplify right side
    199,635.78x = 38,939,719,930.46
  5. Step 5: Solve for x
    x = 38,939,719,930.46/199,635.78
  6. Step 6: Final answer
    x = 195,053.81

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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.