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Finding the Fourth Proportional to 361,982.10, 543,491.55 and 204,518.10

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Solution

The fourth proportional to 361,982.10, 543,491.55 and 204,518.10 is: 307,070.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,982.10 : 543,491.55 = 204,518.10 : x
  2. Step 2: Convert to fraction form
    361,982.10/543,491.55 = 204,518.10/x
  3. Step 3: Cross multiply
    361,982.10x = 543,491.55 × 204,518.10
  4. Step 4: Simplify right side
    361,982.10x = 111,153,859,172.06
  5. Step 5: Solve for x
    x = 111,153,859,172.06/361,982.10
  6. Step 6: Final answer
    x = 307,070.04

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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.