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Finding the Fourth Proportional to 362,909.81, 544,454.01 and 126,254.54

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Solution

The fourth proportional to 362,909.81, 544,454.01 and 126,254.54 is: 189,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,909.81 : 544,454.01 = 126,254.54 : x
  2. Step 2: Convert to fraction form
    362,909.81/544,454.01 = 126,254.54/x
  3. Step 3: Cross multiply
    362,909.81x = 544,454.01 × 126,254.54
  4. Step 4: Simplify right side
    362,909.81x = 68,739,787,861.44
  5. Step 5: Solve for x
    x = 68,739,787,861.44/362,909.81
  6. Step 6: Final answer
    x = 189,412.87

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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.