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Finding the Fourth Proportional to 477,989.83, 717,021.60 and 123,007.33

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Solution

The fourth proportional to 477,989.83, 717,021.60 and 123,007.33 is: 184,520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,989.83 : 717,021.60 = 123,007.33 : x
  2. Step 2: Convert to fraction form
    477,989.83/717,021.60 = 123,007.33/x
  3. Step 3: Cross multiply
    477,989.83x = 717,021.60 × 123,007.33
  4. Step 4: Simplify right side
    477,989.83x = 88,198,912,568.33
  5. Step 5: Solve for x
    x = 88,198,912,568.33/477,989.83
  6. Step 6: Final answer
    x = 184,520.48

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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.