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Finding the Fourth Proportional to 79,315.83, 118,739.99 and 69,474.33

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Solution

The fourth proportional to 79,315.83, 118,739.99 and 69,474.33 is: 104,006.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.83 : 118,739.99 = 69,474.33 : x
  2. Step 2: Convert to fraction form
    79,315.83/118,739.99 = 69,474.33/x
  3. Step 3: Cross multiply
    79,315.83x = 118,739.99 × 69,474.33
  4. Step 4: Simplify right side
    79,315.83x = 8,249,380,655.76
  5. Step 5: Solve for x
    x = 8,249,380,655.76/79,315.83
  6. Step 6: Final answer
    x = 104,006.74

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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.