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Finding the Fourth Proportional to 323,149.47, 484,945.60 and 112,787.40

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Solution

The fourth proportional to 323,149.47, 484,945.60 and 112,787.40 is: 169,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,149.47 : 484,945.60 = 112,787.40 : x
  2. Step 2: Convert to fraction form
    323,149.47/484,945.60 = 112,787.40/x
  3. Step 3: Cross multiply
    323,149.47x = 484,945.60 × 112,787.40
  4. Step 4: Simplify right side
    323,149.47x = 54,695,753,365.44
  5. Step 5: Solve for x
    x = 54,695,753,365.44/323,149.47
  6. Step 6: Final answer
    x = 169,258.37

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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.