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Finding the Fourth Proportional to 79,325.86, 118,992.72 and 26,023.20

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Solution

The fourth proportional to 79,325.86, 118,992.72 and 26,023.20 is: 39,036.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,325.86 : 118,992.72 = 26,023.20 : x
  2. Step 2: Convert to fraction form
    79,325.86/118,992.72 = 26,023.20/x
  3. Step 3: Cross multiply
    79,325.86x = 118,992.72 × 26,023.20
  4. Step 4: Simplify right side
    79,325.86x = 3,096,571,351.10
  5. Step 5: Solve for x
    x = 3,096,571,351.10/79,325.86
  6. Step 6: Final answer
    x = 39,036.09

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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.