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Finding the Fourth Proportional to 79,490.93, 119,162.27 and 26,863.61

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Solution

The fourth proportional to 79,490.93, 119,162.27 and 26,863.61 is: 40,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,490.93 : 119,162.27 = 26,863.61 : x
  2. Step 2: Convert to fraction form
    79,490.93/119,162.27 = 26,863.61/x
  3. Step 3: Cross multiply
    79,490.93x = 119,162.27 × 26,863.61
  4. Step 4: Simplify right side
    79,490.93x = 3,201,128,747.99
  5. Step 5: Solve for x
    x = 3,201,128,747.99/79,490.93
  6. Step 6: Final answer
    x = 40,270.36

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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.