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Finding the Fourth Proportional to 363,271.40, 544,910.19 and 126,613.70

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Solution

The fourth proportional to 363,271.40, 544,910.19 and 126,613.70 is: 189,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,271.40 : 544,910.19 = 126,613.70 : x
  2. Step 2: Convert to fraction form
    363,271.40/544,910.19 = 126,613.70/x
  3. Step 3: Cross multiply
    363,271.40x = 544,910.19 × 126,613.70
  4. Step 4: Simplify right side
    363,271.40x = 68,993,095,323.60
  5. Step 5: Solve for x
    x = 68,993,095,323.60/363,271.40
  6. Step 6: Final answer
    x = 189,921.63

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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.