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Finding the Fourth Proportional to 404,558.20, 606,983.10 and 168,070.60

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Solution

The fourth proportional to 404,558.20, 606,983.10 and 168,070.60 is: 252,166.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,558.20 : 606,983.10 = 168,070.60 : x
  2. Step 2: Convert to fraction form
    404,558.20/606,983.10 = 168,070.60/x
  3. Step 3: Cross multiply
    404,558.20x = 606,983.10 × 168,070.60
  4. Step 4: Simplify right side
    404,558.20x = 102,016,013,806.86
  5. Step 5: Solve for x
    x = 102,016,013,806.86/404,558.20
  6. Step 6: Final answer
    x = 252,166.47

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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.