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Finding the Fourth Proportional to 119,867.70, 179,779.26 and 39,906.92

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Solution

The fourth proportional to 119,867.70, 179,779.26 and 39,906.92 is: 59,852.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,867.70 : 179,779.26 = 39,906.92 : x
  2. Step 2: Convert to fraction form
    119,867.70/179,779.26 = 39,906.92/x
  3. Step 3: Cross multiply
    119,867.70x = 179,779.26 × 39,906.92
  4. Step 4: Simplify right side
    119,867.70x = 7,174,436,546.48
  5. Step 5: Solve for x
    x = 7,174,436,546.48/119,867.70
  6. Step 6: Final answer
    x = 59,852.96

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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.