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Finding the Fourth Proportional to 323,855.20, 485,552.40 and 124,098.40

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Solution

The fourth proportional to 323,855.20, 485,552.40 and 124,098.40 is: 186,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,855.20 : 485,552.40 = 124,098.40 : x
  2. Step 2: Convert to fraction form
    323,855.20/485,552.40 = 124,098.40/x
  3. Step 3: Cross multiply
    323,855.20x = 485,552.40 × 124,098.40
  4. Step 4: Simplify right side
    323,855.20x = 60,256,275,956.16
  5. Step 5: Solve for x
    x = 60,256,275,956.16/323,855.20
  6. Step 6: Final answer
    x = 186,059.31

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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.