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Finding the Fourth Proportional to 79,779.73, 110,091.54 and 43,969.63

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Solution

The fourth proportional to 79,779.73, 110,091.54 and 43,969.63 is: 60,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,779.73 : 110,091.54 = 43,969.63 : x
  2. Step 2: Convert to fraction form
    79,779.73/110,091.54 = 43,969.63/x
  3. Step 3: Cross multiply
    79,779.73x = 110,091.54 × 43,969.63
  4. Step 4: Simplify right side
    79,779.73x = 4,840,684,279.93
  5. Step 5: Solve for x
    x = 4,840,684,279.93/79,779.73
  6. Step 6: Final answer
    x = 60,675.62

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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.