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Finding the Fourth Proportional to 94,137.48, 129,912.71 and 51,696

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Solution

The fourth proportional to 94,137.48, 129,912.71 and 51,696 is: 71,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,137.48 : 129,912.71 = 51,696 : x
  2. Step 2: Convert to fraction form
    94,137.48/129,912.71 = 51,696/x
  3. Step 3: Cross multiply
    94,137.48x = 129,912.71 × 51,696
  4. Step 4: Simplify right side
    94,137.48x = 6,715,967,197.68
  5. Step 5: Solve for x
    x = 6,715,967,197.68/94,137.48
  6. Step 6: Final answer
    x = 71,342.12

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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.