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Finding the Fourth Proportional to 217,717.99, 326,597.59 and 84,608.51

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Solution

The fourth proportional to 217,717.99, 326,597.59 and 84,608.51 is: 126,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,717.99 : 326,597.59 = 84,608.51 : x
  2. Step 2: Convert to fraction form
    217,717.99/326,597.59 = 84,608.51/x
  3. Step 3: Cross multiply
    217,717.99x = 326,597.59 × 84,608.51
  4. Step 4: Simplify right side
    217,717.99x = 27,632,935,157.00
  5. Step 5: Solve for x
    x = 27,632,935,157.00/217,717.99
  6. Step 6: Final answer
    x = 126,920.77

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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.