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Finding the Fourth Proportional to 79,672.32, 119,508.48 and 27,087.36

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Solution

The fourth proportional to 79,672.32, 119,508.48 and 27,087.36 is: 40,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,672.32 : 119,508.48 = 27,087.36 : x
  2. Step 2: Convert to fraction form
    79,672.32/119,508.48 = 27,087.36/x
  3. Step 3: Cross multiply
    79,672.32x = 119,508.48 × 27,087.36
  4. Step 4: Simplify right side
    79,672.32x = 3,237,169,220.81
  5. Step 5: Solve for x
    x = 3,237,169,220.81/79,672.32
  6. Step 6: Final answer
    x = 40,631.04

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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.