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Finding the Fourth Proportional to 202,574.34, 279,551.52 and 111,936.56

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Solution

The fourth proportional to 202,574.34, 279,551.52 and 111,936.56 is: 154,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,574.34 : 279,551.52 = 111,936.56 : x
  2. Step 2: Convert to fraction form
    202,574.34/279,551.52 = 111,936.56/x
  3. Step 3: Cross multiply
    202,574.34x = 279,551.52 × 111,936.56
  4. Step 4: Simplify right side
    202,574.34x = 31,292,034,093.81
  5. Step 5: Solve for x
    x = 31,292,034,093.81/202,574.34
  6. Step 6: Final answer
    x = 154,471.86

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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.