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Finding the Fourth Proportional to 135,588.66, 203,063.04 and 68,863.32

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Solution

The fourth proportional to 135,588.66, 203,063.04 and 68,863.32 is: 103,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,588.66 : 203,063.04 = 68,863.32 : x
  2. Step 2: Convert to fraction form
    135,588.66/203,063.04 = 68,863.32/x
  3. Step 3: Cross multiply
    135,588.66x = 203,063.04 × 68,863.32
  4. Step 4: Simplify right side
    135,588.66x = 13,983,595,103.69
  5. Step 5: Solve for x
    x = 13,983,595,103.69/135,588.66
  6. Step 6: Final answer
    x = 103,132.48

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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.