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Finding the Fourth Proportional to 159,401.01, 239,240.97 and 84,576.45

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Solution

The fourth proportional to 159,401.01, 239,240.97 and 84,576.45 is: 126,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,401.01 : 239,240.97 = 84,576.45 : x
  2. Step 2: Convert to fraction form
    159,401.01/239,240.97 = 84,576.45/x
  3. Step 3: Cross multiply
    159,401.01x = 239,240.97 × 84,576.45
  4. Step 4: Simplify right side
    159,401.01x = 20,234,151,937.16
  5. Step 5: Solve for x
    x = 20,234,151,937.16/159,401.01
  6. Step 6: Final answer
    x = 126,938.67

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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.