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Finding the Fourth Proportional to 100,723.63, 151,054.50 and 33,243.24

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Solution

The fourth proportional to 100,723.63, 151,054.50 and 33,243.24 is: 49,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,723.63 : 151,054.50 = 33,243.24 : x
  2. Step 2: Convert to fraction form
    100,723.63/151,054.50 = 33,243.24/x
  3. Step 3: Cross multiply
    100,723.63x = 151,054.50 × 33,243.24
  4. Step 4: Simplify right side
    100,723.63x = 5,021,540,241.31
  5. Step 5: Solve for x
    x = 5,021,540,241.31/100,723.63
  6. Step 6: Final answer
    x = 49,854.64

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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.