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Finding the Fourth Proportional to 321,891.46, 482,837.23 and 122,211.95

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Solution

The fourth proportional to 321,891.46, 482,837.23 and 122,211.95 is: 183,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,891.46 : 482,837.23 = 122,211.95 : x
  2. Step 2: Convert to fraction form
    321,891.46/482,837.23 = 122,211.95/x
  3. Step 3: Cross multiply
    321,891.46x = 482,837.23 × 122,211.95
  4. Step 4: Simplify right side
    321,891.46x = 59,008,480,587.39
  5. Step 5: Solve for x
    x = 59,008,480,587.39/321,891.46
  6. Step 6: Final answer
    x = 183,317.94

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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.