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Finding the Fourth Proportional to 79,873.72, 119,829.02 and 23,712.57

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Solution

The fourth proportional to 79,873.72, 119,829.02 and 23,712.57 is: 35,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,873.72 : 119,829.02 = 23,712.57 : x
  2. Step 2: Convert to fraction form
    79,873.72/119,829.02 = 23,712.57/x
  3. Step 3: Cross multiply
    79,873.72x = 119,829.02 × 23,712.57
  4. Step 4: Simplify right side
    79,873.72x = 2,841,453,906.22
  5. Step 5: Solve for x
    x = 2,841,453,906.22/79,873.72
  6. Step 6: Final answer
    x = 35,574.33

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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.