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Finding the Fourth Proportional to 48,930.60, 73,395.90 and 40,627.20

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Solution

The fourth proportional to 48,930.60, 73,395.90 and 40,627.20 is: 60,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,930.60 : 73,395.90 = 40,627.20 : x
  2. Step 2: Convert to fraction form
    48,930.60/73,395.90 = 40,627.20/x
  3. Step 3: Cross multiply
    48,930.60x = 73,395.90 × 40,627.20
  4. Step 4: Simplify right side
    48,930.60x = 2,981,869,908.48
  5. Step 5: Solve for x
    x = 2,981,869,908.48/48,930.60
  6. Step 6: Final answer
    x = 60,940.80

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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.