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Finding the Fourth Proportional to 131,696.62, 197,524.87 and 42,949.98

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Solution

The fourth proportional to 131,696.62, 197,524.87 and 42,949.98 is: 64,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,696.62 : 197,524.87 = 42,949.98 : x
  2. Step 2: Convert to fraction form
    131,696.62/197,524.87 = 42,949.98/x
  3. Step 3: Cross multiply
    131,696.62x = 197,524.87 × 42,949.98
  4. Step 4: Simplify right side
    131,696.62x = 8,483,689,108.63
  5. Step 5: Solve for x
    x = 8,483,689,108.63/131,696.62
  6. Step 6: Final answer
    x = 64,418.43

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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.