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Finding the Fourth Proportional to 216,599.22, 324,829.71 and 74,410.21

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Solution

The fourth proportional to 216,599.22, 324,829.71 and 74,410.21 is: 111,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,599.22 : 324,829.71 = 74,410.21 : x
  2. Step 2: Convert to fraction form
    216,599.22/324,829.71 = 74,410.21/x
  3. Step 3: Cross multiply
    216,599.22x = 324,829.71 × 74,410.21
  4. Step 4: Simplify right side
    216,599.22x = 24,170,645,311.19
  5. Step 5: Solve for x
    x = 24,170,645,311.19/216,599.22
  6. Step 6: Final answer
    x = 111,591.56

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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.