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Finding the Fourth Proportional to 231,395.88, 347,132.76 and 73,672.68

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Solution

The fourth proportional to 231,395.88, 347,132.76 and 73,672.68 is: 110,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,395.88 : 347,132.76 = 73,672.68 : x
  2. Step 2: Convert to fraction form
    231,395.88/347,132.76 = 73,672.68/x
  3. Step 3: Cross multiply
    231,395.88x = 347,132.76 × 73,672.68
  4. Step 4: Simplify right side
    231,395.88x = 25,574,200,745.00
  5. Step 5: Solve for x
    x = 25,574,200,745.00/231,395.88
  6. Step 6: Final answer
    x = 110,521.42

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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.