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Finding the Fourth Proportional to 99,676.92, 149,489.91 and 29,539.83

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Solution

The fourth proportional to 99,676.92, 149,489.91 and 29,539.83 is: 44,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,676.92 : 149,489.91 = 29,539.83 : x
  2. Step 2: Convert to fraction form
    99,676.92/149,489.91 = 29,539.83/x
  3. Step 3: Cross multiply
    99,676.92x = 149,489.91 × 29,539.83
  4. Step 4: Simplify right side
    99,676.92x = 4,415,906,528.12
  5. Step 5: Solve for x
    x = 4,415,906,528.12/99,676.92
  6. Step 6: Final answer
    x = 44,302.20

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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.