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Finding the Fourth Proportional to 131,187.60, 196,554.60 and 60,922.80

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Solution

The fourth proportional to 131,187.60, 196,554.60 and 60,922.80 is: 91,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,187.60 : 196,554.60 = 60,922.80 : x
  2. Step 2: Convert to fraction form
    131,187.60/196,554.60 = 60,922.80/x
  3. Step 3: Cross multiply
    131,187.60x = 196,554.60 × 60,922.80
  4. Step 4: Simplify right side
    131,187.60x = 11,974,656,584.88
  5. Step 5: Solve for x
    x = 11,974,656,584.88/131,187.60
  6. Step 6: Final answer
    x = 91,278.88

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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.