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Finding the Fourth Proportional to 129,793.17, 194,574.03 and 69,853.82

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Solution

The fourth proportional to 129,793.17, 194,574.03 and 69,853.82 is: 104,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,793.17 : 194,574.03 = 69,853.82 : x
  2. Step 2: Convert to fraction form
    129,793.17/194,574.03 = 69,853.82/x
  3. Step 3: Cross multiply
    129,793.17x = 194,574.03 × 69,853.82
  4. Step 4: Simplify right side
    129,793.17x = 13,591,738,295.42
  5. Step 5: Solve for x
    x = 13,591,738,295.42/129,793.17
  6. Step 6: Final answer
    x = 104,718.44

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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.