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Finding the Fourth Proportional to 481,791.92, 722,631.93 and 126,833.60

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Solution

The fourth proportional to 481,791.92, 722,631.93 and 126,833.60 is: 190,235.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,791.92 : 722,631.93 = 126,833.60 : x
  2. Step 2: Convert to fraction form
    481,791.92/722,631.93 = 126,833.60/x
  3. Step 3: Cross multiply
    481,791.92x = 722,631.93 × 126,833.60
  4. Step 4: Simplify right side
    481,791.92x = 91,654,005,543.69
  5. Step 5: Solve for x
    x = 91,654,005,543.69/481,791.92
  6. Step 6: Final answer
    x = 190,235.67

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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.