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Finding the Fourth Proportional to 76,951.63, 115,399.81 and 32,581.54

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Solution

The fourth proportional to 76,951.63, 115,399.81 and 32,581.54 is: 48,860.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,951.63 : 115,399.81 = 32,581.54 : x
  2. Step 2: Convert to fraction form
    76,951.63/115,399.81 = 32,581.54/x
  3. Step 3: Cross multiply
    76,951.63x = 115,399.81 × 32,581.54
  4. Step 4: Simplify right side
    76,951.63x = 3,759,903,525.51
  5. Step 5: Solve for x
    x = 3,759,903,525.51/76,951.63
  6. Step 6: Final answer
    x = 48,860.61

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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.