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Finding the Fourth Proportional to 192,516.44, 265,705.52 and 111,990.69

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Solution

The fourth proportional to 192,516.44, 265,705.52 and 111,990.69 is: 154,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,516.44 : 265,705.52 = 111,990.69 : x
  2. Step 2: Convert to fraction form
    192,516.44/265,705.52 = 111,990.69/x
  3. Step 3: Cross multiply
    192,516.44x = 265,705.52 × 111,990.69
  4. Step 4: Simplify right side
    192,516.44x = 29,756,543,961.66
  5. Step 5: Solve for x
    x = 29,756,543,961.66/192,516.44
  6. Step 6: Final answer
    x = 154,566.25

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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.