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Finding the Fourth Proportional to 322,028.61, 444,400.47 and 178,789.02

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Solution

The fourth proportional to 322,028.61, 444,400.47 and 178,789.02 is: 246,729.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,028.61 : 444,400.47 = 178,789.02 : x
  2. Step 2: Convert to fraction form
    322,028.61/444,400.47 = 178,789.02/x
  3. Step 3: Cross multiply
    322,028.61x = 444,400.47 × 178,789.02
  4. Step 4: Simplify right side
    322,028.61x = 79,453,924,518.84
  5. Step 5: Solve for x
    x = 79,453,924,518.84/322,028.61
  6. Step 6: Final answer
    x = 246,729.40

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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.