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Finding the Fourth Proportional to 79,879.50, 119,808.84 and 23,718.48

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Solution

The fourth proportional to 79,879.50, 119,808.84 and 23,718.48 is: 35,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,879.50 : 119,808.84 = 23,718.48 : x
  2. Step 2: Convert to fraction form
    79,879.50/119,808.84 = 23,718.48/x
  3. Step 3: Cross multiply
    79,879.50x = 119,808.84 × 23,718.48
  4. Step 4: Simplify right side
    79,879.50x = 2,841,683,575.36
  5. Step 5: Solve for x
    x = 2,841,683,575.36/79,879.50
  6. Step 6: Final answer
    x = 35,574.63

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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.