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Finding the Fourth Proportional to 216,571.32, 324,819.72 and 58,812.48

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Solution

The fourth proportional to 216,571.32, 324,819.72 and 58,812.48 is: 88,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,571.32 : 324,819.72 = 58,812.48 : x
  2. Step 2: Convert to fraction form
    216,571.32/324,819.72 = 58,812.48/x
  3. Step 3: Cross multiply
    216,571.32x = 324,819.72 × 58,812.48
  4. Step 4: Simplify right side
    216,571.32x = 19,103,453,286.11
  5. Step 5: Solve for x
    x = 19,103,453,286.11/216,571.32
  6. Step 6: Final answer
    x = 88,208.60

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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.