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Finding the Fourth Proportional to 131,806.60, 197,709.90 and 60,729.10

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Solution

The fourth proportional to 131,806.60, 197,709.90 and 60,729.10 is: 91,093.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,806.60 : 197,709.90 = 60,729.10 : x
  2. Step 2: Convert to fraction form
    131,806.60/197,709.90 = 60,729.10/x
  3. Step 3: Cross multiply
    131,806.60x = 197,709.90 × 60,729.10
  4. Step 4: Simplify right side
    131,806.60x = 12,006,744,288.09
  5. Step 5: Solve for x
    x = 12,006,744,288.09/131,806.60
  6. Step 6: Final answer
    x = 91,093.65

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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.