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Finding the Fourth Proportional to 198,754.76, 274,256.61 and 134,364.07

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Solution

The fourth proportional to 198,754.76, 274,256.61 and 134,364.07 is: 185,405.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,754.76 : 274,256.61 = 134,364.07 : x
  2. Step 2: Convert to fraction form
    198,754.76/274,256.61 = 134,364.07/x
  3. Step 3: Cross multiply
    198,754.76x = 274,256.61 × 134,364.07
  4. Step 4: Simplify right side
    198,754.76x = 36,850,234,344.00
  5. Step 5: Solve for x
    x = 36,850,234,344.00/198,754.76
  6. Step 6: Final answer
    x = 185,405.54

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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.