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Finding the Fourth Proportional to 70,861.91, 97,788.26 and 39,033.77

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Solution

The fourth proportional to 70,861.91, 97,788.26 and 39,033.77 is: 53,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,861.91 : 97,788.26 = 39,033.77 : x
  2. Step 2: Convert to fraction form
    70,861.91/97,788.26 = 39,033.77/x
  3. Step 3: Cross multiply
    70,861.91x = 97,788.26 × 39,033.77
  4. Step 4: Simplify right side
    70,861.91x = 3,817,043,765.43
  5. Step 5: Solve for x
    x = 3,817,043,765.43/70,861.91
  6. Step 6: Final answer
    x = 53,865.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.