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Finding the Fourth Proportional to 129,554, 194,331 and 36,062.18

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Solution

The fourth proportional to 129,554, 194,331 and 36,062.18 is: 54,093.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,554 : 194,331 = 36,062.18 : x
  2. Step 2: Convert to fraction form
    129,554/194,331 = 36,062.18/x
  3. Step 3: Cross multiply
    129,554x = 194,331 × 36,062.18
  4. Step 4: Simplify right side
    129,554x = 7,007,999,501.58
  5. Step 5: Solve for x
    x = 7,007,999,501.58/129,554
  6. Step 6: Final answer
    x = 54,093.27

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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.