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Finding the Fourth Proportional to 63,220.46, 87,245.49 and 34,541.90

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Solution

The fourth proportional to 63,220.46, 87,245.49 and 34,541.90 is: 47,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,220.46 : 87,245.49 = 34,541.90 : x
  2. Step 2: Convert to fraction form
    63,220.46/87,245.49 = 34,541.90/x
  3. Step 3: Cross multiply
    63,220.46x = 87,245.49 × 34,541.90
  4. Step 4: Simplify right side
    63,220.46x = 3,013,624,735.27
  5. Step 5: Solve for x
    x = 3,013,624,735.27/63,220.46
  6. Step 6: Final answer
    x = 47,668.50

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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.