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Finding the Fourth Proportional to 64,341.20, 96,511.80 and 48,789.20

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Solution

The fourth proportional to 64,341.20, 96,511.80 and 48,789.20 is: 73,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,341.20 : 96,511.80 = 48,789.20 : x
  2. Step 2: Convert to fraction form
    64,341.20/96,511.80 = 48,789.20/x
  3. Step 3: Cross multiply
    64,341.20x = 96,511.80 × 48,789.20
  4. Step 4: Simplify right side
    64,341.20x = 4,708,733,512.56
  5. Step 5: Solve for x
    x = 4,708,733,512.56/64,341.20
  6. Step 6: Final answer
    x = 73,183.80

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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.