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Finding the Fourth Proportional to 274,278.90, 411,270.42 and 124,437.43

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Solution

The fourth proportional to 274,278.90, 411,270.42 and 124,437.43 is: 186,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,278.90 : 411,270.42 = 124,437.43 : x
  2. Step 2: Convert to fraction form
    274,278.90/411,270.42 = 124,437.43/x
  3. Step 3: Cross multiply
    274,278.90x = 411,270.42 × 124,437.43
  4. Step 4: Simplify right side
    274,278.90x = 51,177,434,099.82
  5. Step 5: Solve for x
    x = 51,177,434,099.82/274,278.90
  6. Step 6: Final answer
    x = 186,589.03

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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.