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Finding the Fourth Proportional to 246,571.25, 369,852.84 and 78,091.31

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Solution

The fourth proportional to 246,571.25, 369,852.84 and 78,091.31 is: 117,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,571.25 : 369,852.84 = 78,091.31 : x
  2. Step 2: Convert to fraction form
    246,571.25/369,852.84 = 78,091.31/x
  3. Step 3: Cross multiply
    246,571.25x = 369,852.84 × 78,091.31
  4. Step 4: Simplify right side
    246,571.25x = 28,882,293,707.45
  5. Step 5: Solve for x
    x = 28,882,293,707.45/246,571.25
  6. Step 6: Final answer
    x = 117,135.69

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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.