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Finding the Fourth Proportional to 94,930, 131,003.62 and 51,912.28

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Solution

The fourth proportional to 94,930, 131,003.62 and 51,912.28 is: 71,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,930 : 131,003.62 = 51,912.28 : x
  2. Step 2: Convert to fraction form
    94,930/131,003.62 = 51,912.28/x
  3. Step 3: Cross multiply
    94,930x = 131,003.62 × 51,912.28
  4. Step 4: Simplify right side
    94,930x = 6,800,696,602.45
  5. Step 5: Solve for x
    x = 6,800,696,602.45/94,930
  6. Step 6: Final answer
    x = 71,639.07

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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.