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Finding the Fourth Proportional to 79,486.72, 119,133.24 and 43,946.62

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Solution

The fourth proportional to 79,486.72, 119,133.24 and 43,946.62 is: 65,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,486.72 : 119,133.24 = 43,946.62 : x
  2. Step 2: Convert to fraction form
    79,486.72/119,133.24 = 43,946.62/x
  3. Step 3: Cross multiply
    79,486.72x = 119,133.24 × 43,946.62
  4. Step 4: Simplify right side
    79,486.72x = 5,235,503,227.65
  5. Step 5: Solve for x
    x = 5,235,503,227.65/79,486.72
  6. Step 6: Final answer
    x = 65,866.39

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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.