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Finding the Fourth Proportional to 71,263.72, 106,863.99 and 37,977.58

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Solution

The fourth proportional to 71,263.72, 106,863.99 and 37,977.58 is: 56,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,263.72 : 106,863.99 = 37,977.58 : x
  2. Step 2: Convert to fraction form
    71,263.72/106,863.99 = 37,977.58/x
  3. Step 3: Cross multiply
    71,263.72x = 106,863.99 × 37,977.58
  4. Step 4: Simplify right side
    71,263.72x = 4,058,435,729.34
  5. Step 5: Solve for x
    x = 4,058,435,729.34/71,263.72
  6. Step 6: Final answer
    x = 56,949.54

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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.