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Finding the Fourth Proportional to 79,570.96, 119,247.69 and 43,979.56

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Solution

The fourth proportional to 79,570.96, 119,247.69 and 43,979.56 is: 65,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,570.96 : 119,247.69 = 43,979.56 : x
  2. Step 2: Convert to fraction form
    79,570.96/119,247.69 = 43,979.56/x
  3. Step 3: Cross multiply
    79,570.96x = 119,247.69 × 43,979.56
  4. Step 4: Simplify right side
    79,570.96x = 5,244,460,804.02
  5. Step 5: Solve for x
    x = 5,244,460,804.02/79,570.96
  6. Step 6: Final answer
    x = 65,909.23

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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.