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Finding the Fourth Proportional to 115,396.40, 173,143.20 and 62,843.60

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Solution

The fourth proportional to 115,396.40, 173,143.20 and 62,843.60 is: 94,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,396.40 : 173,143.20 = 62,843.60 : x
  2. Step 2: Convert to fraction form
    115,396.40/173,143.20 = 62,843.60/x
  3. Step 3: Cross multiply
    115,396.40x = 173,143.20 × 62,843.60
  4. Step 4: Simplify right side
    115,396.40x = 10,880,942,003.52
  5. Step 5: Solve for x
    x = 10,880,942,003.52/115,396.40
  6. Step 6: Final answer
    x = 94,291.87

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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.