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Finding the Fourth Proportional to 551,172.06, 826,766.39 and 191,354.33

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Solution

The fourth proportional to 551,172.06, 826,766.39 and 191,354.33 is: 287,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,172.06 : 826,766.39 = 191,354.33 : x
  2. Step 2: Convert to fraction form
    551,172.06/826,766.39 = 191,354.33/x
  3. Step 3: Cross multiply
    551,172.06x = 826,766.39 × 191,354.33
  4. Step 4: Simplify right side
    551,172.06x = 158,205,327,668.20
  5. Step 5: Solve for x
    x = 158,205,327,668.20/551,172.06
  6. Step 6: Final answer
    x = 287,034.38

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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.