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Finding the Fourth Proportional to 362,915.43, 544,462.47 and 126,260.16

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Solution

The fourth proportional to 362,915.43, 544,462.47 and 126,260.16 is: 189,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,915.43 : 544,462.47 = 126,260.16 : x
  2. Step 2: Convert to fraction form
    362,915.43/544,462.47 = 126,260.16/x
  3. Step 3: Cross multiply
    362,915.43x = 544,462.47 × 126,260.16
  4. Step 4: Simplify right side
    362,915.43x = 68,743,918,576.20
  5. Step 5: Solve for x
    x = 68,743,918,576.20/362,915.43
  6. Step 6: Final answer
    x = 189,421.32

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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.