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Finding the Fourth Proportional to 122,050.82, 183,100.79 and 43,220.41

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Solution

The fourth proportional to 122,050.82, 183,100.79 and 43,220.41 is: 64,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,050.82 : 183,100.79 = 43,220.41 : x
  2. Step 2: Convert to fraction form
    122,050.82/183,100.79 = 43,220.41/x
  3. Step 3: Cross multiply
    122,050.82x = 183,100.79 × 43,220.41
  4. Step 4: Simplify right side
    122,050.82x = 7,913,690,865.42
  5. Step 5: Solve for x
    x = 7,913,690,865.42/122,050.82
  6. Step 6: Final answer
    x = 64,839.31

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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.