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Finding the Fourth Proportional to 79,654.56, 119,484.64 and 27,057.20

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Solution

The fourth proportional to 79,654.56, 119,484.64 and 27,057.20 is: 40,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,654.56 : 119,484.64 = 27,057.20 : x
  2. Step 2: Convert to fraction form
    79,654.56/119,484.64 = 27,057.20/x
  3. Step 3: Cross multiply
    79,654.56x = 119,484.64 × 27,057.20
  4. Step 4: Simplify right side
    79,654.56x = 3,232,919,801.41
  5. Step 5: Solve for x
    x = 3,232,919,801.41/79,654.56
  6. Step 6: Final answer
    x = 40,586.75

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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.