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Finding the Fourth Proportional to 269,774.87, 404,895.63 and 103,679.51

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Solution

The fourth proportional to 269,774.87, 404,895.63 and 103,679.51 is: 155,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,774.87 : 404,895.63 = 103,679.51 : x
  2. Step 2: Convert to fraction form
    269,774.87/404,895.63 = 103,679.51/x
  3. Step 3: Cross multiply
    269,774.87x = 404,895.63 × 103,679.51
  4. Step 4: Simplify right side
    269,774.87x = 41,979,380,519.54
  5. Step 5: Solve for x
    x = 41,979,380,519.54/269,774.87
  6. Step 6: Final answer
    x = 155,608.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.