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Finding the Fourth Proportional to 194,676.28, 291,888.87 and 76,359.58

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Solution

The fourth proportional to 194,676.28, 291,888.87 and 76,359.58 is: 114,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,676.28 : 291,888.87 = 76,359.58 : x
  2. Step 2: Convert to fraction form
    194,676.28/291,888.87 = 76,359.58/x
  3. Step 3: Cross multiply
    194,676.28x = 291,888.87 × 76,359.58
  4. Step 4: Simplify right side
    194,676.28x = 22,288,511,519.87
  5. Step 5: Solve for x
    x = 22,288,511,519.87/194,676.28
  6. Step 6: Final answer
    x = 114,490.12

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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.