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Finding the Fourth Proportional to 122,390.73, 183,594.87 and 51,241.77

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Solution

The fourth proportional to 122,390.73, 183,594.87 and 51,241.77 is: 76,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,390.73 : 183,594.87 = 51,241.77 : x
  2. Step 2: Convert to fraction form
    122,390.73/183,594.87 = 51,241.77/x
  3. Step 3: Cross multiply
    122,390.73x = 183,594.87 × 51,241.77
  4. Step 4: Simplify right side
    122,390.73x = 9,407,726,101.72
  5. Step 5: Solve for x
    x = 9,407,726,101.72/122,390.73
  6. Step 6: Final answer
    x = 76,866.33

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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.