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Finding the Fourth Proportional to 93,891.89, 140,650.23 and 56,431.73

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Solution

The fourth proportional to 93,891.89, 140,650.23 and 56,431.73 is: 84,534.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,891.89 : 140,650.23 = 56,431.73 : x
  2. Step 2: Convert to fraction form
    93,891.89/140,650.23 = 56,431.73/x
  3. Step 3: Cross multiply
    93,891.89x = 140,650.23 × 56,431.73
  4. Step 4: Simplify right side
    93,891.89x = 7,937,135,803.80
  5. Step 5: Solve for x
    x = 7,937,135,803.80/93,891.89
  6. Step 6: Final answer
    x = 84,534.84

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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.