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Finding the Fourth Proportional to 131,906.84, 197,878.74 and 43,167.32

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Solution

The fourth proportional to 131,906.84, 197,878.74 and 43,167.32 is: 64,757.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,906.84 : 197,878.74 = 43,167.32 : x
  2. Step 2: Convert to fraction form
    131,906.84/197,878.74 = 43,167.32/x
  3. Step 3: Cross multiply
    131,906.84x = 197,878.74 × 43,167.32
  4. Step 4: Simplify right side
    131,906.84x = 8,541,894,890.78
  5. Step 5: Solve for x
    x = 8,541,894,890.78/131,906.84
  6. Step 6: Final answer
    x = 64,757.03

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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.