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Finding the Fourth Proportional to 137,745.87, 206,618.16 and 49,002.66

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Solution

The fourth proportional to 137,745.87, 206,618.16 and 49,002.66 is: 73,503.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,745.87 : 206,618.16 = 49,002.66 : x
  2. Step 2: Convert to fraction form
    137,745.87/206,618.16 = 49,002.66/x
  3. Step 3: Cross multiply
    137,745.87x = 206,618.16 × 49,002.66
  4. Step 4: Simplify right side
    137,745.87x = 10,124,839,444.31
  5. Step 5: Solve for x
    x = 10,124,839,444.31/137,745.87
  6. Step 6: Final answer
    x = 73,503.76

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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.