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Finding the Fourth Proportional to 79,826, 119,739.60 and 35,440.84

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Solution

The fourth proportional to 79,826, 119,739.60 and 35,440.84 is: 53,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,826 : 119,739.60 = 35,440.84 : x
  2. Step 2: Convert to fraction form
    79,826/119,739.60 = 35,440.84/x
  3. Step 3: Cross multiply
    79,826x = 119,739.60 × 35,440.84
  4. Step 4: Simplify right side
    79,826x = 4,243,672,005.26
  5. Step 5: Solve for x
    x = 4,243,672,005.26/79,826
  6. Step 6: Final answer
    x = 53,161.53

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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.