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Finding the Fourth Proportional to 79,798.05, 119,692.47 and 29,231.20

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Solution

The fourth proportional to 79,798.05, 119,692.47 and 29,231.20 is: 43,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,798.05 : 119,692.47 = 29,231.20 : x
  2. Step 2: Convert to fraction form
    79,798.05/119,692.47 = 29,231.20/x
  3. Step 3: Cross multiply
    79,798.05x = 119,692.47 × 29,231.20
  4. Step 4: Simplify right side
    79,798.05x = 3,498,753,784.45
  5. Step 5: Solve for x
    x = 3,498,753,784.45/79,798.05
  6. Step 6: Final answer
    x = 43,845.10

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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.