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Finding the Fourth Proportional to 248,047.20, 371,661.20 and 211,183.20

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Solution

The fourth proportional to 248,047.20, 371,661.20 and 211,183.20 is: 316,426.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,047.20 : 371,661.20 = 211,183.20 : x
  2. Step 2: Convert to fraction form
    248,047.20/371,661.20 = 211,183.20/x
  3. Step 3: Cross multiply
    248,047.20x = 371,661.20 × 211,183.20
  4. Step 4: Simplify right side
    248,047.20x = 78,488,601,531.84
  5. Step 5: Solve for x
    x = 78,488,601,531.84/248,047.20
  6. Step 6: Final answer
    x = 316,426.07

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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.