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Finding the Fourth Proportional to 455,099.76, 682,659.96 and 118,153.65

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Solution

The fourth proportional to 455,099.76, 682,659.96 and 118,153.65 is: 177,233.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,099.76 : 682,659.96 = 118,153.65 : x
  2. Step 2: Convert to fraction form
    455,099.76/682,659.96 = 118,153.65/x
  3. Step 3: Cross multiply
    455,099.76x = 682,659.96 × 118,153.65
  4. Step 4: Simplify right side
    455,099.76x = 80,658,765,982.85
  5. Step 5: Solve for x
    x = 80,658,765,982.85/455,099.76
  6. Step 6: Final answer
    x = 177,233.15

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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.