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Finding the Fourth Proportional to 79,362.59, 119,042.58 and 31,976.53

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Solution

The fourth proportional to 79,362.59, 119,042.58 and 31,976.53 is: 47,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.59 : 119,042.58 = 31,976.53 : x
  2. Step 2: Convert to fraction form
    79,362.59/119,042.58 = 31,976.53/x
  3. Step 3: Cross multiply
    79,362.59x = 119,042.58 × 31,976.53
  4. Step 4: Simplify right side
    79,362.59x = 3,806,568,273.08
  5. Step 5: Solve for x
    x = 3,806,568,273.08/79,362.59
  6. Step 6: Final answer
    x = 47,964.26

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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.