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Finding the Fourth Proportional to 129,960.52, 194,947.74 and 41,220.76

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Solution

The fourth proportional to 129,960.52, 194,947.74 and 41,220.76 is: 61,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,960.52 : 194,947.74 = 41,220.76 : x
  2. Step 2: Convert to fraction form
    129,960.52/194,947.74 = 41,220.76/x
  3. Step 3: Cross multiply
    129,960.52x = 194,947.74 × 41,220.76
  4. Step 4: Simplify right side
    129,960.52x = 8,035,894,003.08
  5. Step 5: Solve for x
    x = 8,035,894,003.08/129,960.52
  6. Step 6: Final answer
    x = 61,833.35

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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.