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Finding the Fourth Proportional to 122,194.40, 183,291.60 and 43,316.60

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Solution

The fourth proportional to 122,194.40, 183,291.60 and 43,316.60 is: 64,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,194.40 : 183,291.60 = 43,316.60 : x
  2. Step 2: Convert to fraction form
    122,194.40/183,291.60 = 43,316.60/x
  3. Step 3: Cross multiply
    122,194.40x = 183,291.60 × 43,316.60
  4. Step 4: Simplify right side
    122,194.40x = 7,939,568,920.56
  5. Step 5: Solve for x
    x = 7,939,568,920.56/122,194.40
  6. Step 6: Final answer
    x = 64,974.90

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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.