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Finding the Fourth Proportional to 79,511.76, 119,269.80 and 32,768.28

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Solution

The fourth proportional to 79,511.76, 119,269.80 and 32,768.28 is: 49,153.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,511.76 : 119,269.80 = 32,768.28 : x
  2. Step 2: Convert to fraction form
    79,511.76/119,269.80 = 32,768.28/x
  3. Step 3: Cross multiply
    79,511.76x = 119,269.80 × 32,768.28
  4. Step 4: Simplify right side
    79,511.76x = 3,908,266,201.94
  5. Step 5: Solve for x
    x = 3,908,266,201.94/79,511.76
  6. Step 6: Final answer
    x = 49,153.31

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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.