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Finding the Fourth Proportional to 168,419.31, 252,409.58 and 68,462.74

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Solution

The fourth proportional to 168,419.31, 252,409.58 and 68,462.74 is: 102,604.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,419.31 : 252,409.58 = 68,462.74 : x
  2. Step 2: Convert to fraction form
    168,419.31/252,409.58 = 68,462.74/x
  3. Step 3: Cross multiply
    168,419.31x = 252,409.58 × 68,462.74
  4. Step 4: Simplify right side
    168,419.31x = 17,280,652,064.09
  5. Step 5: Solve for x
    x = 17,280,652,064.09/168,419.31
  6. Step 6: Final answer
    x = 102,604.94

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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.