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Finding the Fourth Proportional to 311,467.25, 467,153.49 and 86,804.03

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Solution

The fourth proportional to 311,467.25, 467,153.49 and 86,804.03 is: 130,192.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,467.25 : 467,153.49 = 86,804.03 : x
  2. Step 2: Convert to fraction form
    311,467.25/467,153.49 = 86,804.03/x
  3. Step 3: Cross multiply
    311,467.25x = 467,153.49 × 86,804.03
  4. Step 4: Simplify right side
    311,467.25x = 40,550,805,560.56
  5. Step 5: Solve for x
    x = 40,550,805,560.56/311,467.25
  6. Step 6: Final answer
    x = 130,192.84

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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.