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Finding the Fourth Proportional to 551,147.08, 826,508.08 and 214,143.37

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Solution

The fourth proportional to 551,147.08, 826,508.08 and 214,143.37 is: 321,132.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,147.08 : 826,508.08 = 214,143.37 : x
  2. Step 2: Convert to fraction form
    551,147.08/826,508.08 = 214,143.37/x
  3. Step 3: Cross multiply
    551,147.08x = 826,508.08 × 214,143.37
  4. Step 4: Simplify right side
    551,147.08x = 176,991,225,583.43
  5. Step 5: Solve for x
    x = 176,991,225,583.43/551,147.08
  6. Step 6: Final answer
    x = 321,132.47

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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.