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Finding the Fourth Proportional to 339,275.41, 508,137.94 and 161,906.98

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Solution

The fourth proportional to 339,275.41, 508,137.94 and 161,906.98 is: 242,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,275.41 : 508,137.94 = 161,906.98 : x
  2. Step 2: Convert to fraction form
    339,275.41/508,137.94 = 161,906.98/x
  3. Step 3: Cross multiply
    339,275.41x = 508,137.94 × 161,906.98
  4. Step 4: Simplify right side
    339,275.41x = 82,271,079,288.82
  5. Step 5: Solve for x
    x = 82,271,079,288.82/339,275.41
  6. Step 6: Final answer
    x = 242,490.55

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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.