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Finding the Fourth Proportional to 122,115.44, 183,191.52 and 43,230.44

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Solution

The fourth proportional to 122,115.44, 183,191.52 and 43,230.44 is: 64,852.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,115.44 : 183,191.52 = 43,230.44 : x
  2. Step 2: Convert to fraction form
    122,115.44/183,191.52 = 43,230.44/x
  3. Step 3: Cross multiply
    122,115.44x = 183,191.52 × 43,230.44
  4. Step 4: Simplify right side
    122,115.44x = 7,919,450,013.87
  5. Step 5: Solve for x
    x = 7,919,450,013.87/122,115.44
  6. Step 6: Final answer
    x = 64,852.16

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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.