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Finding the Fourth Proportional to 79,714.28, 119,584.38 and 27,118.28

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Solution

The fourth proportional to 79,714.28, 119,584.38 and 27,118.28 is: 40,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,714.28 : 119,584.38 = 27,118.28 : x
  2. Step 2: Convert to fraction form
    79,714.28/119,584.38 = 27,118.28/x
  3. Step 3: Cross multiply
    79,714.28x = 119,584.38 × 27,118.28
  4. Step 4: Simplify right side
    79,714.28x = 3,242,922,700.47
  5. Step 5: Solve for x
    x = 3,242,922,700.47/79,714.28
  6. Step 6: Final answer
    x = 40,681.83

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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.