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Finding the Fourth Proportional to 137,797.70, 206,696.55 and 49,151.30

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Solution

The fourth proportional to 137,797.70, 206,696.55 and 49,151.30 is: 73,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,797.70 : 206,696.55 = 49,151.30 : x
  2. Step 2: Convert to fraction form
    137,797.70/206,696.55 = 49,151.30/x
  3. Step 3: Cross multiply
    137,797.70x = 206,696.55 × 49,151.30
  4. Step 4: Simplify right side
    137,797.70x = 10,159,404,138.02
  5. Step 5: Solve for x
    x = 10,159,404,138.02/137,797.70
  6. Step 6: Final answer
    x = 73,726.95

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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.