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Finding the Fourth Proportional to 362,890.80, 544,206.60 and 126,241.20

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Solution

The fourth proportional to 362,890.80, 544,206.60 and 126,241.20 is: 189,316.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,890.80 : 544,206.60 = 126,241.20 : x
  2. Step 2: Convert to fraction form
    362,890.80/544,206.60 = 126,241.20/x
  3. Step 3: Cross multiply
    362,890.80x = 544,206.60 × 126,241.20
  4. Step 4: Simplify right side
    362,890.80x = 68,701,294,231.92
  5. Step 5: Solve for x
    x = 68,701,294,231.92/362,890.80
  6. Step 6: Final answer
    x = 189,316.72

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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.