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Finding the Fourth Proportional to 87,440.40, 131,063.40 and 48,025.80

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Solution

The fourth proportional to 87,440.40, 131,063.40 and 48,025.80 is: 71,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,440.40 : 131,063.40 = 48,025.80 : x
  2. Step 2: Convert to fraction form
    87,440.40/131,063.40 = 48,025.80/x
  3. Step 3: Cross multiply
    87,440.40x = 131,063.40 × 48,025.80
  4. Step 4: Simplify right side
    87,440.40x = 6,294,424,635.72
  5. Step 5: Solve for x
    x = 6,294,424,635.72/87,440.40
  6. Step 6: Final answer
    x = 71,985.31

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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.