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Finding the Fourth Proportional to 168,944.80, 233,144.45 and 91,420.45

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Solution

The fourth proportional to 168,944.80, 233,144.45 and 91,420.45 is: 126,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,944.80 : 233,144.45 = 91,420.45 : x
  2. Step 2: Convert to fraction form
    168,944.80/233,144.45 = 91,420.45/x
  3. Step 3: Cross multiply
    168,944.80x = 233,144.45 × 91,420.45
  4. Step 4: Simplify right side
    168,944.80x = 21,314,169,494.04
  5. Step 5: Solve for x
    x = 21,314,169,494.04/168,944.80
  6. Step 6: Final answer
    x = 126,160.55

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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.