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Finding the Fourth Proportional to 74,497.19, 111,745.78 and 52,409.43

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Solution

The fourth proportional to 74,497.19, 111,745.78 and 52,409.43 is: 78,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,497.19 : 111,745.78 = 52,409.43 : x
  2. Step 2: Convert to fraction form
    74,497.19/111,745.78 = 52,409.43/x
  3. Step 3: Cross multiply
    74,497.19x = 111,745.78 × 52,409.43
  4. Step 4: Simplify right side
    74,497.19x = 5,856,532,503.68
  5. Step 5: Solve for x
    x = 5,856,532,503.68/74,497.19
  6. Step 6: Final answer
    x = 78,614.15

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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.