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Finding the Fourth Proportional to 129,519, 194,278.50 and 36,027.18

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Solution

The fourth proportional to 129,519, 194,278.50 and 36,027.18 is: 54,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,519 : 194,278.50 = 36,027.18 : x
  2. Step 2: Convert to fraction form
    129,519/194,278.50 = 36,027.18/x
  3. Step 3: Cross multiply
    129,519x = 194,278.50 × 36,027.18
  4. Step 4: Simplify right side
    129,519x = 6,999,306,489.63
  5. Step 5: Solve for x
    x = 6,999,306,489.63/129,519
  6. Step 6: Final answer
    x = 54,040.77

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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.