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Finding the Fourth Proportional to 68,301.63, 102,427.83 and 28,861.82

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Solution

The fourth proportional to 68,301.63, 102,427.83 and 28,861.82 is: 43,282.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,301.63 : 102,427.83 = 28,861.82 : x
  2. Step 2: Convert to fraction form
    68,301.63/102,427.83 = 28,861.82/x
  3. Step 3: Cross multiply
    68,301.63x = 102,427.83 × 28,861.82
  4. Step 4: Simplify right side
    68,301.63x = 2,956,253,592.45
  5. Step 5: Solve for x
    x = 2,956,253,592.45/68,301.63
  6. Step 6: Final answer
    x = 43,282.33

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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.