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Finding the Fourth Proportional to 321,881.67, 444,188.22 and 178,638.03

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Solution

The fourth proportional to 321,881.67, 444,188.22 and 178,638.03 is: 246,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,881.67 : 444,188.22 = 178,638.03 : x
  2. Step 2: Convert to fraction form
    321,881.67/444,188.22 = 178,638.03/x
  3. Step 3: Cross multiply
    321,881.67x = 444,188.22 × 178,638.03
  4. Step 4: Simplify right side
    321,881.67x = 79,348,908,570.01
  5. Step 5: Solve for x
    x = 79,348,908,570.01/321,881.67
  6. Step 6: Final answer
    x = 246,515.77

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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.