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Finding the Fourth Proportional to 323,007.85, 484,155 and 133,363.66

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Solution

The fourth proportional to 323,007.85, 484,155 and 133,363.66 is: 199,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,007.85 : 484,155 = 133,363.66 : x
  2. Step 2: Convert to fraction form
    323,007.85/484,155 = 133,363.66/x
  3. Step 3: Cross multiply
    323,007.85x = 484,155 × 133,363.66
  4. Step 4: Simplify right side
    323,007.85x = 64,568,682,807.30
  5. Step 5: Solve for x
    x = 64,568,682,807.30/323,007.85
  6. Step 6: Final answer
    x = 199,898.18

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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.