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Finding the Fourth Proportional to 79,693.67, 109,989.22 and 60,541.92

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Solution

The fourth proportional to 79,693.67, 109,989.22 and 60,541.92 is: 83,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,693.67 : 109,989.22 = 60,541.92 : x
  2. Step 2: Convert to fraction form
    79,693.67/109,989.22 = 60,541.92/x
  3. Step 3: Cross multiply
    79,693.67x = 109,989.22 × 60,541.92
  4. Step 4: Simplify right side
    79,693.67x = 6,658,958,406.75
  5. Step 5: Solve for x
    x = 6,658,958,406.75/79,693.67
  6. Step 6: Final answer
    x = 83,556.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.