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Finding the Fourth Proportional to 70,790.44, 106,141.12 and 33,327.96

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Solution

The fourth proportional to 70,790.44, 106,141.12 and 33,327.96 is: 49,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,790.44 : 106,141.12 = 33,327.96 : x
  2. Step 2: Convert to fraction form
    70,790.44/106,141.12 = 33,327.96/x
  3. Step 3: Cross multiply
    70,790.44x = 106,141.12 × 33,327.96
  4. Step 4: Simplify right side
    70,790.44x = 3,537,467,001.72
  5. Step 5: Solve for x
    x = 3,537,467,001.72/70,790.44
  6. Step 6: Final answer
    x = 49,970.97

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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.