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Finding the Fourth Proportional to 198,927.88, 274,520.46 and 109,503.88

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Solution

The fourth proportional to 198,927.88, 274,520.46 and 109,503.88 is: 151,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,927.88 : 274,520.46 = 109,503.88 : x
  2. Step 2: Convert to fraction form
    198,927.88/274,520.46 = 109,503.88/x
  3. Step 3: Cross multiply
    198,927.88x = 274,520.46 × 109,503.88
  4. Step 4: Simplify right side
    198,927.88x = 30,061,055,509.38
  5. Step 5: Solve for x
    x = 30,061,055,509.38/198,927.88
  6. Step 6: Final answer
    x = 151,115.35

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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.