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Finding the Fourth Proportional to 79,492.78, 119,231.88 and 26,896.24

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Solution

The fourth proportional to 79,492.78, 119,231.88 and 26,896.24 is: 40,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,492.78 : 119,231.88 = 26,896.24 : x
  2. Step 2: Convert to fraction form
    79,492.78/119,231.88 = 26,896.24/x
  3. Step 3: Cross multiply
    79,492.78x = 119,231.88 × 26,896.24
  4. Step 4: Simplify right side
    79,492.78x = 3,206,889,260.13
  5. Step 5: Solve for x
    x = 3,206,889,260.13/79,492.78
  6. Step 6: Final answer
    x = 40,341.89

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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.