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Finding the Fourth Proportional to 79,920.96, 119,905.44 and 37,833.12

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Solution

The fourth proportional to 79,920.96, 119,905.44 and 37,833.12 is: 56,761.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,920.96 : 119,905.44 = 37,833.12 : x
  2. Step 2: Convert to fraction form
    79,920.96/119,905.44 = 37,833.12/x
  3. Step 3: Cross multiply
    79,920.96x = 119,905.44 × 37,833.12
  4. Step 4: Simplify right side
    79,920.96x = 4,536,396,900.17
  5. Step 5: Solve for x
    x = 4,536,396,900.17/79,920.96
  6. Step 6: Final answer
    x = 56,761.04

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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.