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Finding the Fourth Proportional to 320,995.69, 481,492.36 and 96,355.15

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Solution

The fourth proportional to 320,995.69, 481,492.36 and 96,355.15 is: 144,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,995.69 : 481,492.36 = 96,355.15 : x
  2. Step 2: Convert to fraction form
    320,995.69/481,492.36 = 96,355.15/x
  3. Step 3: Cross multiply
    320,995.69x = 481,492.36 × 96,355.15
  4. Step 4: Simplify right side
    320,995.69x = 46,394,268,571.65
  5. Step 5: Solve for x
    x = 46,394,268,571.65/320,995.69
  6. Step 6: Final answer
    x = 144,532.37

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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.