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Finding the Fourth Proportional to 129,673.32, 194,530.74 and 54,794.20

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Solution

The fourth proportional to 129,673.32, 194,530.74 and 54,794.20 is: 82,200.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,673.32 : 194,530.74 = 54,794.20 : x
  2. Step 2: Convert to fraction form
    129,673.32/194,530.74 = 54,794.20/x
  3. Step 3: Cross multiply
    129,673.32x = 194,530.74 × 54,794.20
  4. Step 4: Simplify right side
    129,673.32x = 10,659,156,273.71
  5. Step 5: Solve for x
    x = 10,659,156,273.71/129,673.32
  6. Step 6: Final answer
    x = 82,200.07

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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.