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Finding the Fourth Proportional to 274,437.63, 411,231.32 and 190,361.25

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Solution

The fourth proportional to 274,437.63, 411,231.32 and 190,361.25 is: 285,246.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,437.63 : 411,231.32 = 190,361.25 : x
  2. Step 2: Convert to fraction form
    274,437.63/411,231.32 = 190,361.25/x
  3. Step 3: Cross multiply
    274,437.63x = 411,231.32 × 190,361.25
  4. Step 4: Simplify right side
    274,437.63x = 78,282,508,114.35
  5. Step 5: Solve for x
    x = 78,282,508,114.35/274,437.63
  6. Step 6: Final answer
    x = 285,246.99

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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.