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Finding the Fourth Proportional to 216,745.47, 325,033.97 and 74,563.74

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Solution

The fourth proportional to 216,745.47, 325,033.97 and 74,563.74 is: 111,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,745.47 : 325,033.97 = 74,563.74 : x
  2. Step 2: Convert to fraction form
    216,745.47/325,033.97 = 74,563.74/x
  3. Step 3: Cross multiply
    216,745.47x = 325,033.97 × 74,563.74
  4. Step 4: Simplify right side
    216,745.47x = 24,235,748,057.43
  5. Step 5: Solve for x
    x = 24,235,748,057.43/216,745.47
  6. Step 6: Final answer
    x = 111,816.63

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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.