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Finding the Fourth Proportional to 362,912.84, 544,381.52 and 126,257.48

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Solution

The fourth proportional to 362,912.84, 544,381.52 and 126,257.48 is: 189,390.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,912.84 : 544,381.52 = 126,257.48 : x
  2. Step 2: Convert to fraction form
    362,912.84/544,381.52 = 126,257.48/x
  3. Step 3: Cross multiply
    362,912.84x = 544,381.52 × 126,257.48
  4. Step 4: Simplify right side
    362,912.84x = 68,732,238,873.77
  5. Step 5: Solve for x
    x = 68,732,238,873.77/362,912.84
  6. Step 6: Final answer
    x = 189,390.49

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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.