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Finding the Fourth Proportional to 169,437.84, 254,245.86 and 80,674.80

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Solution

The fourth proportional to 169,437.84, 254,245.86 and 80,674.80 is: 121,054.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,437.84 : 254,245.86 = 80,674.80 : x
  2. Step 2: Convert to fraction form
    169,437.84/254,245.86 = 80,674.80/x
  3. Step 3: Cross multiply
    169,437.84x = 254,245.86 × 80,674.80
  4. Step 4: Simplify right side
    169,437.84x = 20,511,233,906.33
  5. Step 5: Solve for x
    x = 20,511,233,906.33/169,437.84
  6. Step 6: Final answer
    x = 121,054.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.