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Finding the Fourth Proportional to 79,779.74, 110,095.81 and 43,969.73

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Solution

The fourth proportional to 79,779.74, 110,095.81 and 43,969.73 is: 60,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,779.74 : 110,095.81 = 43,969.73 : x
  2. Step 2: Convert to fraction form
    79,779.74/110,095.81 = 43,969.73/x
  3. Step 3: Cross multiply
    79,779.74x = 110,095.81 × 43,969.73
  4. Step 4: Simplify right side
    79,779.74x = 4,840,883,205.15
  5. Step 5: Solve for x
    x = 4,840,883,205.15/79,779.74
  6. Step 6: Final answer
    x = 60,678.11

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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.