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Finding the Fourth Proportional to 79,647.30, 119,396.16 and 27,019.98

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Solution

The fourth proportional to 79,647.30, 119,396.16 and 27,019.98 is: 40,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,647.30 : 119,396.16 = 27,019.98 : x
  2. Step 2: Convert to fraction form
    79,647.30/119,396.16 = 27,019.98/x
  3. Step 3: Cross multiply
    79,647.30x = 119,396.16 × 27,019.98
  4. Step 4: Simplify right side
    79,647.30x = 3,226,081,855.28
  5. Step 5: Solve for x
    x = 3,226,081,855.28/79,647.30
  6. Step 6: Final answer
    x = 40,504.60

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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.