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Finding the Fourth Proportional to 216,452.30, 324,648 and 74,295.23

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Solution

The fourth proportional to 216,452.30, 324,648 and 74,295.23 is: 111,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,452.30 : 324,648 = 74,295.23 : x
  2. Step 2: Convert to fraction form
    216,452.30/324,648 = 74,295.23/x
  3. Step 3: Cross multiply
    216,452.30x = 324,648 × 74,295.23
  4. Step 4: Simplify right side
    216,452.30x = 24,119,797,829.04
  5. Step 5: Solve for x
    x = 24,119,797,829.04/216,452.30
  6. Step 6: Final answer
    x = 111,432.39

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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.