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Finding the Fourth Proportional to 61,126.28, 91,696.28 and 54,847.70

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Solution

The fourth proportional to 61,126.28, 91,696.28 and 54,847.70 is: 82,277.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,126.28 : 91,696.28 = 54,847.70 : x
  2. Step 2: Convert to fraction form
    61,126.28/91,696.28 = 54,847.70/x
  3. Step 3: Cross multiply
    61,126.28x = 91,696.28 × 54,847.70
  4. Step 4: Simplify right side
    61,126.28x = 5,029,330,056.56
  5. Step 5: Solve for x
    x = 5,029,330,056.56/61,126.28
  6. Step 6: Final answer
    x = 82,277.71

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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.