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Finding the Fourth Proportional to 200,618.44, 276,851.70 and 109,979.44

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Solution

The fourth proportional to 200,618.44, 276,851.70 and 109,979.44 is: 151,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,618.44 : 276,851.70 = 109,979.44 : x
  2. Step 2: Convert to fraction form
    200,618.44/276,851.70 = 109,979.44/x
  3. Step 3: Cross multiply
    200,618.44x = 276,851.70 × 109,979.44
  4. Step 4: Simplify right side
    200,618.44x = 30,447,994,929.05
  5. Step 5: Solve for x
    x = 30,447,994,929.05/200,618.44
  6. Step 6: Final answer
    x = 151,770.67

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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.