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Finding the Fourth Proportional to 202,563.01, 279,529.40 and 111,917.03

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Solution

The fourth proportional to 202,563.01, 279,529.40 and 111,917.03 is: 154,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,563.01 : 279,529.40 = 111,917.03 : x
  2. Step 2: Convert to fraction form
    202,563.01/279,529.40 = 111,917.03/x
  3. Step 3: Cross multiply
    202,563.01x = 279,529.40 × 111,917.03
  4. Step 4: Simplify right side
    202,563.01x = 31,284,100,245.68
  5. Step 5: Solve for x
    x = 31,284,100,245.68/202,563.01
  6. Step 6: Final answer
    x = 154,441.33

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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.