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Finding the Fourth Proportional to 188,056.62, 281,905.02 and 69,696.18

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Solution

The fourth proportional to 188,056.62, 281,905.02 and 69,696.18 is: 104,477.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,056.62 : 281,905.02 = 69,696.18 : x
  2. Step 2: Convert to fraction form
    188,056.62/281,905.02 = 69,696.18/x
  3. Step 3: Cross multiply
    188,056.62x = 281,905.02 × 69,696.18
  4. Step 4: Simplify right side
    188,056.62x = 19,647,703,016.82
  5. Step 5: Solve for x
    x = 19,647,703,016.82/188,056.62
  6. Step 6: Final answer
    x = 104,477.59

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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.