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Finding the Fourth Proportional to 222,357.25, 306,853.09 and 120,382.70

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Solution

The fourth proportional to 222,357.25, 306,853.09 and 120,382.70 is: 166,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,357.25 : 306,853.09 = 120,382.70 : x
  2. Step 2: Convert to fraction form
    222,357.25/306,853.09 = 120,382.70/x
  3. Step 3: Cross multiply
    222,357.25x = 306,853.09 × 120,382.70
  4. Step 4: Simplify right side
    222,357.25x = 36,939,803,778.50
  5. Step 5: Solve for x
    x = 36,939,803,778.50/222,357.25
  6. Step 6: Final answer
    x = 166,128.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.