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Finding the Fourth Proportional to 321,877.83, 444,185.87 and 178,643.91

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Solution

The fourth proportional to 321,877.83, 444,185.87 and 178,643.91 is: 246,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,877.83 : 444,185.87 = 178,643.91 : x
  2. Step 2: Convert to fraction form
    321,877.83/444,185.87 = 178,643.91/x
  3. Step 3: Cross multiply
    321,877.83x = 444,185.87 × 178,643.91
  4. Step 4: Simplify right side
    321,877.83x = 79,351,099,690.33
  5. Step 5: Solve for x
    x = 79,351,099,690.33/321,877.83
  6. Step 6: Final answer
    x = 246,525.52

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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.