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Finding the Fourth Proportional to 129,818.60, 194,583.90 and 50,906.60

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Solution

The fourth proportional to 129,818.60, 194,583.90 and 50,906.60 is: 76,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,818.60 : 194,583.90 = 50,906.60 : x
  2. Step 2: Convert to fraction form
    129,818.60/194,583.90 = 50,906.60/x
  3. Step 3: Cross multiply
    129,818.60x = 194,583.90 × 50,906.60
  4. Step 4: Simplify right side
    129,818.60x = 9,905,604,763.74
  5. Step 5: Solve for x
    x = 9,905,604,763.74/129,818.60
  6. Step 6: Final answer
    x = 76,303.43

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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.