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Finding the Fourth Proportional to 223,269, 308,116.08 and 122,667

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Solution

The fourth proportional to 223,269, 308,116.08 and 122,667 is: 169,283.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,269 : 308,116.08 = 122,667 : x
  2. Step 2: Convert to fraction form
    223,269/308,116.08 = 122,667/x
  3. Step 3: Cross multiply
    223,269x = 308,116.08 × 122,667
  4. Step 4: Simplify right side
    223,269x = 37,795,675,185.36
  5. Step 5: Solve for x
    x = 37,795,675,185.36/223,269
  6. Step 6: Final answer
    x = 169,283.13

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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.