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Finding the Fourth Proportional to 412,167.79, 618,180.30 and 123,975.26

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Solution

The fourth proportional to 412,167.79, 618,180.30 and 123,975.26 is: 185,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,167.79 : 618,180.30 = 123,975.26 : x
  2. Step 2: Convert to fraction form
    412,167.79/618,180.30 = 123,975.26/x
  3. Step 3: Cross multiply
    412,167.79x = 618,180.30 × 123,975.26
  4. Step 4: Simplify right side
    412,167.79x = 76,639,059,708.60
  5. Step 5: Solve for x
    x = 76,639,059,708.60/412,167.79
  6. Step 6: Final answer
    x = 185,941.41

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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.