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Finding the Fourth Proportional to 218,203.32, 327,305.37 and 68,455.41

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Solution

The fourth proportional to 218,203.32, 327,305.37 and 68,455.41 is: 102,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,203.32 : 327,305.37 = 68,455.41 : x
  2. Step 2: Convert to fraction form
    218,203.32/327,305.37 = 68,455.41/x
  3. Step 3: Cross multiply
    218,203.32x = 327,305.37 × 68,455.41
  4. Step 4: Simplify right side
    218,203.32x = 22,405,823,298.55
  5. Step 5: Solve for x
    x = 22,405,823,298.55/218,203.32
  6. Step 6: Final answer
    x = 102,683.24

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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.