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Finding the Fourth Proportional to 202,352.88, 279,247.39 and 111,708.97

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Solution

The fourth proportional to 202,352.88, 279,247.39 and 111,708.97 is: 154,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,352.88 : 279,247.39 = 111,708.97 : x
  2. Step 2: Convert to fraction form
    202,352.88/279,247.39 = 111,708.97/x
  3. Step 3: Cross multiply
    202,352.88x = 279,247.39 × 111,708.97
  4. Step 4: Simplify right side
    202,352.88x = 31,194,439,533.83
  5. Step 5: Solve for x
    x = 31,194,439,533.83/202,352.88
  6. Step 6: Final answer
    x = 154,158.61

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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.