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Finding the Fourth Proportional to 422,965.44, 634,485.42 and 119,362.28

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Solution

The fourth proportional to 422,965.44, 634,485.42 and 119,362.28 is: 179,053.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,965.44 : 634,485.42 = 119,362.28 : x
  2. Step 2: Convert to fraction form
    422,965.44/634,485.42 = 119,362.28/x
  3. Step 3: Cross multiply
    422,965.44x = 634,485.42 × 119,362.28
  4. Step 4: Simplify right side
    422,965.44x = 75,733,623,185.53
  5. Step 5: Solve for x
    x = 75,733,623,185.53/422,965.44
  6. Step 6: Final answer
    x = 179,053.93

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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.