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Finding the Fourth Proportional to 76,858.92, 115,294.32 and 29,496.69

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Solution

The fourth proportional to 76,858.92, 115,294.32 and 29,496.69 is: 44,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,858.92 : 115,294.32 = 29,496.69 : x
  2. Step 2: Convert to fraction form
    76,858.92/115,294.32 = 29,496.69/x
  3. Step 3: Cross multiply
    76,858.92x = 115,294.32 × 29,496.69
  4. Step 4: Simplify right side
    76,858.92x = 3,400,800,815.80
  5. Step 5: Solve for x
    x = 3,400,800,815.80/76,858.92
  6. Step 6: Final answer
    x = 44,247.31

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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.