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Finding the Fourth Proportional to 73,856.20, 110,708.70 and 36,358.60

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Solution

The fourth proportional to 73,856.20, 110,708.70 and 36,358.60 is: 54,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,856.20 : 110,708.70 = 36,358.60 : x
  2. Step 2: Convert to fraction form
    73,856.20/110,708.70 = 36,358.60/x
  3. Step 3: Cross multiply
    73,856.20x = 110,708.70 × 36,358.60
  4. Step 4: Simplify right side
    73,856.20x = 4,025,213,339.82
  5. Step 5: Solve for x
    x = 4,025,213,339.82/73,856.20
  6. Step 6: Final answer
    x = 54,500.68

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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.