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Finding the Fourth Proportional to 79,206.67, 118,811.83 and 26,616.61

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Solution

The fourth proportional to 79,206.67, 118,811.83 and 26,616.61 is: 39,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,206.67 : 118,811.83 = 26,616.61 : x
  2. Step 2: Convert to fraction form
    79,206.67/118,811.83 = 26,616.61/x
  3. Step 3: Cross multiply
    79,206.67x = 118,811.83 × 26,616.61
  4. Step 4: Simplify right side
    79,206.67x = 3,162,368,142.50
  5. Step 5: Solve for x
    x = 3,162,368,142.50/79,206.67
  6. Step 6: Final answer
    x = 39,925.53

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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.