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Finding the Fourth Proportional to 404,278.19, 605,818.21 and 164,099.84

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Solution

The fourth proportional to 404,278.19, 605,818.21 and 164,099.84 is: 245,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,278.19 : 605,818.21 = 164,099.84 : x
  2. Step 2: Convert to fraction form
    404,278.19/605,818.21 = 164,099.84/x
  3. Step 3: Cross multiply
    404,278.19x = 605,818.21 × 164,099.84
  4. Step 4: Simplify right side
    404,278.19x = 99,414,670,509.59
  5. Step 5: Solve for x
    x = 99,414,670,509.59/404,278.19
  6. Step 6: Final answer
    x = 245,906.59

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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.