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Finding the Fourth Proportional to 323,466.20, 485,112.90 and 98,826.20

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Solution

The fourth proportional to 323,466.20, 485,112.90 and 98,826.20 is: 148,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,466.20 : 485,112.90 = 98,826.20 : x
  2. Step 2: Convert to fraction form
    323,466.20/485,112.90 = 98,826.20/x
  3. Step 3: Cross multiply
    323,466.20x = 485,112.90 × 98,826.20
  4. Step 4: Simplify right side
    323,466.20x = 47,941,864,477.98
  5. Step 5: Solve for x
    x = 47,941,864,477.98/323,466.20
  6. Step 6: Final answer
    x = 148,212.90

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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.