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Finding the Fourth Proportional to 79,817.88, 119,545.59 and 61,904.73

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Solution

The fourth proportional to 79,817.88, 119,545.59 and 61,904.73 is: 92,716.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,817.88 : 119,545.59 = 61,904.73 : x
  2. Step 2: Convert to fraction form
    79,817.88/119,545.59 = 61,904.73/x
  3. Step 3: Cross multiply
    79,817.88x = 119,545.59 × 61,904.73
  4. Step 4: Simplify right side
    79,817.88x = 7,400,437,471.64
  5. Step 5: Solve for x
    x = 7,400,437,471.64/79,817.88
  6. Step 6: Final answer
    x = 92,716.54

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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.