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Finding the Fourth Proportional to 80,049.52, 119,898.78 and 63,428.32

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Solution

The fourth proportional to 80,049.52, 119,898.78 and 63,428.32 is: 95,003.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,049.52 : 119,898.78 = 63,428.32 : x
  2. Step 2: Convert to fraction form
    80,049.52/119,898.78 = 63,428.32/x
  3. Step 3: Cross multiply
    80,049.52x = 119,898.78 × 63,428.32
  4. Step 4: Simplify right side
    80,049.52x = 7,604,978,185.45
  5. Step 5: Solve for x
    x = 7,604,978,185.45/80,049.52
  6. Step 6: Final answer
    x = 95,003.42

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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.