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Finding the Fourth Proportional to 94,978.88, 131,073.17 and 51,962.43

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Solution

The fourth proportional to 94,978.88, 131,073.17 and 51,962.43 is: 71,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,978.88 : 131,073.17 = 51,962.43 : x
  2. Step 2: Convert to fraction form
    94,978.88/131,073.17 = 51,962.43/x
  3. Step 3: Cross multiply
    94,978.88x = 131,073.17 × 51,962.43
  4. Step 4: Simplify right side
    94,978.88x = 6,810,880,161.19
  5. Step 5: Solve for x
    x = 6,810,880,161.19/94,978.88
  6. Step 6: Final answer
    x = 71,709.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.