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Finding the Fourth Proportional to 217,357.74, 325,806.48 and 73,126.26

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Solution

The fourth proportional to 217,357.74, 325,806.48 and 73,126.26 is: 109,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,357.74 : 325,806.48 = 73,126.26 : x
  2. Step 2: Convert to fraction form
    217,357.74/325,806.48 = 73,126.26/x
  3. Step 3: Cross multiply
    217,357.74x = 325,806.48 × 73,126.26
  4. Step 4: Simplify right side
    217,357.74x = 23,825,009,366.16
  5. Step 5: Solve for x
    x = 23,825,009,366.16/217,357.74
  6. Step 6: Final answer
    x = 109,611.97

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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.