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Finding the Fourth Proportional to 194,956.80, 292,435.20 and 82,617.90

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Solution

The fourth proportional to 194,956.80, 292,435.20 and 82,617.90 is: 123,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,956.80 : 292,435.20 = 82,617.90 : x
  2. Step 2: Convert to fraction form
    194,956.80/292,435.20 = 82,617.90/x
  3. Step 3: Cross multiply
    194,956.80x = 292,435.20 × 82,617.90
  4. Step 4: Simplify right side
    194,956.80x = 24,160,382,110.08
  5. Step 5: Solve for x
    x = 24,160,382,110.08/194,956.80
  6. Step 6: Final answer
    x = 123,926.85

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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.