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Finding the Fourth Proportional to 614,372.67, 921,558.20 and 165,093.54

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Solution

The fourth proportional to 614,372.67, 921,558.20 and 165,093.54 is: 247,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,372.67 : 921,558.20 = 165,093.54 : x
  2. Step 2: Convert to fraction form
    614,372.67/921,558.20 = 165,093.54/x
  3. Step 3: Cross multiply
    614,372.67x = 921,558.20 × 165,093.54
  4. Step 4: Simplify right side
    614,372.67x = 152,143,304,728.56
  5. Step 5: Solve for x
    x = 152,143,304,728.56/614,372.67
  6. Step 6: Final answer
    x = 247,640.09

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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.