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Finding the Fourth Proportional to 198,042.48, 273,336.48 and 154,936.08

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Solution

The fourth proportional to 198,042.48, 273,336.48 and 154,936.08 is: 213,841.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,042.48 : 273,336.48 = 154,936.08 : x
  2. Step 2: Convert to fraction form
    198,042.48/273,336.48 = 154,936.08/x
  3. Step 3: Cross multiply
    198,042.48x = 273,336.48 × 154,936.08
  4. Step 4: Simplify right side
    198,042.48x = 42,349,682,732.20
  5. Step 5: Solve for x
    x = 42,349,682,732.20/198,042.48
  6. Step 6: Final answer
    x = 213,841.41

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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.