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Finding the Fourth Proportional to 474,884.52, 712,363.62 and 137,930.60

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Solution

The fourth proportional to 474,884.52, 712,363.62 and 137,930.60 is: 206,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,884.52 : 712,363.62 = 137,930.60 : x
  2. Step 2: Convert to fraction form
    474,884.52/712,363.62 = 137,930.60/x
  3. Step 3: Cross multiply
    474,884.52x = 712,363.62 × 137,930.60
  4. Step 4: Simplify right side
    474,884.52x = 98,256,741,524.77
  5. Step 5: Solve for x
    x = 98,256,741,524.77/474,884.52
  6. Step 6: Final answer
    x = 206,906.60

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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.