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Finding the Fourth Proportional to 272,427.56, 375,940.57 and 149,908.48

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Solution

The fourth proportional to 272,427.56, 375,940.57 and 149,908.48 is: 206,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,427.56 : 375,940.57 = 149,908.48 : x
  2. Step 2: Convert to fraction form
    272,427.56/375,940.57 = 149,908.48/x
  3. Step 3: Cross multiply
    272,427.56x = 375,940.57 × 149,908.48
  4. Step 4: Simplify right side
    272,427.56x = 56,356,678,104.41
  5. Step 5: Solve for x
    x = 56,356,678,104.41/272,427.56
  6. Step 6: Final answer
    x = 206,868.49

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Why These Related Problems?

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