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Finding the Fourth Proportional to 202,754.61, 279,793.44 and 121,096.71

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Solution

The fourth proportional to 202,754.61, 279,793.44 and 121,096.71 is: 167,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,754.61 : 279,793.44 = 121,096.71 : x
  2. Step 2: Convert to fraction form
    202,754.61/279,793.44 = 121,096.71/x
  3. Step 3: Cross multiply
    202,754.61x = 279,793.44 × 121,096.71
  4. Step 4: Simplify right side
    202,754.61x = 33,882,065,063.58
  5. Step 5: Solve for x
    x = 33,882,065,063.58/202,754.61
  6. Step 6: Final answer
    x = 167,108.73

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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.