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Finding the Fourth Proportional to 202,556.54, 279,530.96 and 111,914.60

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Solution

The fourth proportional to 202,556.54, 279,530.96 and 111,914.60 is: 154,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,556.54 : 279,530.96 = 111,914.60 : x
  2. Step 2: Convert to fraction form
    202,556.54/279,530.96 = 111,914.60/x
  3. Step 3: Cross multiply
    202,556.54x = 279,530.96 × 111,914.60
  4. Step 4: Simplify right side
    202,556.54x = 31,283,593,618.79
  5. Step 5: Solve for x
    x = 31,283,593,618.79/202,556.54
  6. Step 6: Final answer
    x = 154,443.76

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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.