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Finding the Fourth Proportional to 168,940.50, 233,114.82 and 100,943.02

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Solution

The fourth proportional to 168,940.50, 233,114.82 and 100,943.02 is: 139,287.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,940.50 : 233,114.82 = 100,943.02 : x
  2. Step 2: Convert to fraction form
    168,940.50/233,114.82 = 100,943.02/x
  3. Step 3: Cross multiply
    168,940.50x = 233,114.82 × 100,943.02
  4. Step 4: Simplify right side
    168,940.50x = 23,531,313,937.56
  5. Step 5: Solve for x
    x = 23,531,313,937.56/168,940.50
  6. Step 6: Final answer
    x = 139,287.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.