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Finding the Fourth Proportional to 129,792, 194,709.06 and 50,863.44

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Solution

The fourth proportional to 129,792, 194,709.06 and 50,863.44 is: 76,303.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,792 : 194,709.06 = 50,863.44 : x
  2. Step 2: Convert to fraction form
    129,792/194,709.06 = 50,863.44/x
  3. Step 3: Cross multiply
    129,792x = 194,709.06 × 50,863.44
  4. Step 4: Simplify right side
    129,792x = 9,903,572,590.77
  5. Step 5: Solve for x
    x = 9,903,572,590.77/129,792
  6. Step 6: Final answer
    x = 76,303.41

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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.