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Finding the Fourth Proportional to 64,179.87, 96,317.11 and 30,445.99

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Solution

The fourth proportional to 64,179.87, 96,317.11 and 30,445.99 is: 45,691.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,179.87 : 96,317.11 = 30,445.99 : x
  2. Step 2: Convert to fraction form
    64,179.87/96,317.11 = 30,445.99/x
  3. Step 3: Cross multiply
    64,179.87x = 96,317.11 × 30,445.99
  4. Step 4: Simplify right side
    64,179.87x = 2,932,470,021.31
  5. Step 5: Solve for x
    x = 2,932,470,021.31/64,179.87
  6. Step 6: Final answer
    x = 45,691.43

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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.