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Finding the Fourth Proportional to 275,118.49, 379,628.44 and 160,368.42

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Solution

The fourth proportional to 275,118.49, 379,628.44 and 160,368.42 is: 221,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,118.49 : 379,628.44 = 160,368.42 : x
  2. Step 2: Convert to fraction form
    275,118.49/379,628.44 = 160,368.42/x
  3. Step 3: Cross multiply
    275,118.49x = 379,628.44 × 160,368.42
  4. Step 4: Simplify right side
    275,118.49x = 60,880,412,708.94
  5. Step 5: Solve for x
    x = 60,880,412,708.94/275,118.49
  6. Step 6: Final answer
    x = 221,287.97

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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.