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Finding the Fourth Proportional to 168,419.53, 252,409.91 and 68,462.96

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Solution

The fourth proportional to 168,419.53, 252,409.91 and 68,462.96 is: 102,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,419.53 : 252,409.91 = 68,462.96 : x
  2. Step 2: Convert to fraction form
    168,419.53/252,409.91 = 68,462.96/x
  3. Step 3: Cross multiply
    168,419.53x = 252,409.91 × 68,462.96
  4. Step 4: Simplify right side
    168,419.53x = 17,280,729,571.93
  5. Step 5: Solve for x
    x = 17,280,729,571.93/168,419.53
  6. Step 6: Final answer
    x = 102,605.26

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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.