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Finding the Fourth Proportional to 216,161.92, 324,230.64 and 58,378.48

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Solution

The fourth proportional to 216,161.92, 324,230.64 and 58,378.48 is: 87,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,161.92 : 324,230.64 = 58,378.48 : x
  2. Step 2: Convert to fraction form
    216,161.92/324,230.64 = 58,378.48/x
  3. Step 3: Cross multiply
    216,161.92x = 324,230.64 × 58,378.48
  4. Step 4: Simplify right side
    216,161.92x = 18,928,091,932.63
  5. Step 5: Solve for x
    x = 18,928,091,932.63/216,161.92
  6. Step 6: Final answer
    x = 87,564.41

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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.