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Finding the Fourth Proportional to 126,110.35, 189,118.35 and 41,854.80

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Solution

The fourth proportional to 126,110.35, 189,118.35 and 41,854.80 is: 62,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,110.35 : 189,118.35 = 41,854.80 : x
  2. Step 2: Convert to fraction form
    126,110.35/189,118.35 = 41,854.80/x
  3. Step 3: Cross multiply
    126,110.35x = 189,118.35 × 41,854.80
  4. Step 4: Simplify right side
    126,110.35x = 7,915,510,715.58
  5. Step 5: Solve for x
    x = 7,915,510,715.58/126,110.35
  6. Step 6: Final answer
    x = 62,766.54

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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.