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Finding the Fourth Proportional to 322,610.31, 483,817.05 and 85,922.19

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Solution

The fourth proportional to 322,610.31, 483,817.05 and 85,922.19 is: 128,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,610.31 : 483,817.05 = 85,922.19 : x
  2. Step 2: Convert to fraction form
    322,610.31/483,817.05 = 85,922.19/x
  3. Step 3: Cross multiply
    322,610.31x = 483,817.05 × 85,922.19
  4. Step 4: Simplify right side
    322,610.31x = 41,570,620,495.34
  5. Step 5: Solve for x
    x = 41,570,620,495.34/322,610.31
  6. Step 6: Final answer
    x = 128,857.07

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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.