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Finding the Fourth Proportional to 126,005.54, 188,942.69 and 59,427.80

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Solution

The fourth proportional to 126,005.54, 188,942.69 and 59,427.80 is: 89,110.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,005.54 : 188,942.69 = 59,427.80 : x
  2. Step 2: Convert to fraction form
    126,005.54/188,942.69 = 59,427.80/x
  3. Step 3: Cross multiply
    126,005.54x = 188,942.69 × 59,427.80
  4. Step 4: Simplify right side
    126,005.54x = 11,228,447,150.93
  5. Step 5: Solve for x
    x = 11,228,447,150.93/126,005.54
  6. Step 6: Final answer
    x = 89,110.74

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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.