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Finding the Fourth Proportional to 200,618.94, 276,852.39 and 109,979.94

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Solution

The fourth proportional to 200,618.94, 276,852.39 and 109,979.94 is: 151,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,618.94 : 276,852.39 = 109,979.94 : x
  2. Step 2: Convert to fraction form
    200,618.94/276,852.39 = 109,979.94/x
  3. Step 3: Cross multiply
    200,618.94x = 276,852.39 × 109,979.94
  4. Step 4: Simplify right side
    200,618.94x = 30,448,209,241.06
  5. Step 5: Solve for x
    x = 30,448,209,241.06/200,618.94
  6. Step 6: Final answer
    x = 151,771.36

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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.