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Finding the Fourth Proportional to 202,356.58, 279,252.48 and 111,712.67

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Solution

The fourth proportional to 202,356.58, 279,252.48 and 111,712.67 is: 154,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,356.58 : 279,252.48 = 111,712.67 : x
  2. Step 2: Convert to fraction form
    202,356.58/279,252.48 = 111,712.67/x
  3. Step 3: Cross multiply
    202,356.58x = 279,252.48 × 111,712.67
  4. Step 4: Simplify right side
    202,356.58x = 31,196,040,144.92
  5. Step 5: Solve for x
    x = 31,196,040,144.92/202,356.58
  6. Step 6: Final answer
    x = 154,163.71

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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.