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Finding the Fourth Proportional to 323,793.70, 485,460.15 and 124,036.90

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Solution

The fourth proportional to 323,793.70, 485,460.15 and 124,036.90 is: 185,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,793.70 : 485,460.15 = 124,036.90 : x
  2. Step 2: Convert to fraction form
    323,793.70/485,460.15 = 124,036.90/x
  3. Step 3: Cross multiply
    323,793.70x = 485,460.15 × 124,036.90
  4. Step 4: Simplify right side
    323,793.70x = 60,214,972,079.54
  5. Step 5: Solve for x
    x = 60,214,972,079.54/323,793.70
  6. Step 6: Final answer
    x = 185,967.09

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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.