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Finding the Fourth Proportional to 247,724.02, 371,684.49 and 79,270.30

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Solution

The fourth proportional to 247,724.02, 371,684.49 and 79,270.30 is: 118,936.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,724.02 : 371,684.49 = 79,270.30 : x
  2. Step 2: Convert to fraction form
    247,724.02/371,684.49 = 79,270.30/x
  3. Step 3: Cross multiply
    247,724.02x = 371,684.49 × 79,270.30
  4. Step 4: Simplify right side
    247,724.02x = 29,463,541,027.65
  5. Step 5: Solve for x
    x = 29,463,541,027.65/247,724.02
  6. Step 6: Final answer
    x = 118,936.96

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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.