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Finding the Fourth Proportional to 129,674.99, 194,465.67 and 54,800.91

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Solution

The fourth proportional to 129,674.99, 194,465.67 and 54,800.91 is: 82,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,674.99 : 194,465.67 = 54,800.91 : x
  2. Step 2: Convert to fraction form
    129,674.99/194,465.67 = 54,800.91/x
  3. Step 3: Cross multiply
    129,674.99x = 194,465.67 × 54,800.91
  4. Step 4: Simplify right side
    129,674.99x = 10,656,895,679.76
  5. Step 5: Solve for x
    x = 10,656,895,679.76/129,674.99
  6. Step 6: Final answer
    x = 82,181.58

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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.