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Finding the Fourth Proportional to 79,416.54, 119,142.63 and 26,824.68

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Solution

The fourth proportional to 79,416.54, 119,142.63 and 26,824.68 is: 40,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,416.54 : 119,142.63 = 26,824.68 : x
  2. Step 2: Convert to fraction form
    79,416.54/119,142.63 = 26,824.68/x
  3. Step 3: Cross multiply
    79,416.54x = 119,142.63 × 26,824.68
  4. Step 4: Simplify right side
    79,416.54x = 3,195,962,924.11
  5. Step 5: Solve for x
    x = 3,195,962,924.11/79,416.54
  6. Step 6: Final answer
    x = 40,243.04

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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.