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Finding the Fourth Proportional to 48,951.70, 73,318.20 and 40,203.70

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Solution

The fourth proportional to 48,951.70, 73,318.20 and 40,203.70 is: 60,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,951.70 : 73,318.20 = 40,203.70 : x
  2. Step 2: Convert to fraction form
    48,951.70/73,318.20 = 40,203.70/x
  3. Step 3: Cross multiply
    48,951.70x = 73,318.20 × 40,203.70
  4. Step 4: Simplify right side
    48,951.70x = 2,947,662,917.34
  5. Step 5: Solve for x
    x = 2,947,662,917.34/48,951.70
  6. Step 6: Final answer
    x = 60,215.74

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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.