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Finding the Fourth Proportional to 236,571.89, 353,047.40 and 211,328.43

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Solution

The fourth proportional to 236,571.89, 353,047.40 and 211,328.43 is: 315,375.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,571.89 : 353,047.40 = 211,328.43 : x
  2. Step 2: Convert to fraction form
    236,571.89/353,047.40 = 211,328.43/x
  3. Step 3: Cross multiply
    236,571.89x = 353,047.40 × 211,328.43
  4. Step 4: Simplify right side
    236,571.89x = 74,608,953,285.90
  5. Step 5: Solve for x
    x = 74,608,953,285.90/236,571.89
  6. Step 6: Final answer
    x = 315,375.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.