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Finding the Fourth Proportional to 274,278.69, 411,270.11 and 124,437.23

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Solution

The fourth proportional to 274,278.69, 411,270.11 and 124,437.23 is: 186,588.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,278.69 : 411,270.11 = 124,437.23 : x
  2. Step 2: Convert to fraction form
    274,278.69/411,270.11 = 124,437.23/x
  3. Step 3: Cross multiply
    274,278.69x = 411,270.11 × 124,437.23
  4. Step 4: Simplify right side
    274,278.69x = 51,177,311,213.84
  5. Step 5: Solve for x
    x = 51,177,311,213.84/274,278.69
  6. Step 6: Final answer
    x = 186,588.72

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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.