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Finding the Fourth Proportional to 130,028.80, 194,611.20 and 94,388.80

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Solution

The fourth proportional to 130,028.80, 194,611.20 and 94,388.80 is: 141,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,028.80 : 194,611.20 = 94,388.80 : x
  2. Step 2: Convert to fraction form
    130,028.80/194,611.20 = 94,388.80/x
  3. Step 3: Cross multiply
    130,028.80x = 194,611.20 × 94,388.80
  4. Step 4: Simplify right side
    130,028.80x = 18,369,117,634.56
  5. Step 5: Solve for x
    x = 18,369,117,634.56/130,028.80
  6. Step 6: Final answer
    x = 141,269.61

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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.