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Finding the Fourth Proportional to 115,540.60, 173,336.10 and 65,644.60

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Solution

The fourth proportional to 115,540.60, 173,336.10 and 65,644.60 is: 98,481.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,540.60 : 173,336.10 = 65,644.60 : x
  2. Step 2: Convert to fraction form
    115,540.60/173,336.10 = 65,644.60/x
  3. Step 3: Cross multiply
    115,540.60x = 173,336.10 × 65,644.60
  4. Step 4: Simplify right side
    115,540.60x = 11,378,578,950.06
  5. Step 5: Solve for x
    x = 11,378,578,950.06/115,540.60
  6. Step 6: Final answer
    x = 98,481.22

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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.