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Finding the Fourth Proportional to 86,197.73, 118,951.11 and 47,956.50

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Solution

The fourth proportional to 86,197.73, 118,951.11 and 47,956.50 is: 66,179.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,197.73 : 118,951.11 = 47,956.50 : x
  2. Step 2: Convert to fraction form
    86,197.73/118,951.11 = 47,956.50/x
  3. Step 3: Cross multiply
    86,197.73x = 118,951.11 × 47,956.50
  4. Step 4: Simplify right side
    86,197.73x = 5,704,478,906.72
  5. Step 5: Solve for x
    x = 5,704,478,906.72/86,197.73
  6. Step 6: Final answer
    x = 66,179.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.