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Finding the Fourth Proportional to 74,107, 111,181.32 and 29,764.88

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Solution

The fourth proportional to 74,107, 111,181.32 and 29,764.88 is: 44,655.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,107 : 111,181.32 = 29,764.88 : x
  2. Step 2: Convert to fraction form
    74,107/111,181.32 = 29,764.88/x
  3. Step 3: Cross multiply
    74,107x = 111,181.32 × 29,764.88
  4. Step 4: Simplify right side
    74,107x = 3,309,298,648.04
  5. Step 5: Solve for x
    x = 3,309,298,648.04/74,107
  6. Step 6: Final answer
    x = 44,655.68

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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.