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Finding the Fourth Proportional to 216,694.98, 324,845.64 and 98,301.87

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Solution

The fourth proportional to 216,694.98, 324,845.64 and 98,301.87 is: 147,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,694.98 : 324,845.64 = 98,301.87 : x
  2. Step 2: Convert to fraction form
    216,694.98/324,845.64 = 98,301.87/x
  3. Step 3: Cross multiply
    216,694.98x = 324,845.64 × 98,301.87
  4. Step 4: Simplify right side
    216,694.98x = 31,932,933,873.35
  5. Step 5: Solve for x
    x = 31,932,933,873.35/216,694.98
  6. Step 6: Final answer
    x = 147,363.51

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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.