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Finding the Fourth Proportional to 63,640.80, 95,461.20 and 44,881.20

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Solution

The fourth proportional to 63,640.80, 95,461.20 and 44,881.20 is: 67,321.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,640.80 : 95,461.20 = 44,881.20 : x
  2. Step 2: Convert to fraction form
    63,640.80/95,461.20 = 44,881.20/x
  3. Step 3: Cross multiply
    63,640.80x = 95,461.20 × 44,881.20
  4. Step 4: Simplify right side
    63,640.80x = 4,284,413,209.44
  5. Step 5: Solve for x
    x = 4,284,413,209.44/63,640.80
  6. Step 6: Final answer
    x = 67,321.80

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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.