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Finding the Fourth Proportional to 79,576.92, 109,816.11 and 43,769.34

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Solution

The fourth proportional to 79,576.92, 109,816.11 and 43,769.34 is: 60,401.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,576.92 : 109,816.11 = 43,769.34 : x
  2. Step 2: Convert to fraction form
    79,576.92/109,816.11 = 43,769.34/x
  3. Step 3: Cross multiply
    79,576.92x = 109,816.11 × 43,769.34
  4. Step 4: Simplify right side
    79,576.92x = 4,806,578,656.07
  5. Step 5: Solve for x
    x = 4,806,578,656.07/79,576.92
  6. Step 6: Final answer
    x = 60,401.67

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1.5x scale

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.