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Finding the Fourth Proportional to 217,034.40, 325,033.20 and 133,053.60

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Solution

The fourth proportional to 217,034.40, 325,033.20 and 133,053.60 is: 199,262.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,034.40 : 325,033.20 = 133,053.60 : x
  2. Step 2: Convert to fraction form
    217,034.40/325,033.20 = 133,053.60/x
  3. Step 3: Cross multiply
    217,034.40x = 325,033.20 × 133,053.60
  4. Step 4: Simplify right side
    217,034.40x = 43,246,837,379.52
  5. Step 5: Solve for x
    x = 43,246,837,379.52/217,034.40
  6. Step 6: Final answer
    x = 199,262.59

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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.