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Finding the Fourth Proportional to 93,471.95, 140,162.56 and 43,540.31

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Solution

The fourth proportional to 93,471.95, 140,162.56 and 43,540.31 is: 65,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,471.95 : 140,162.56 = 43,540.31 : x
  2. Step 2: Convert to fraction form
    93,471.95/140,162.56 = 43,540.31/x
  3. Step 3: Cross multiply
    93,471.95x = 140,162.56 × 43,540.31
  4. Step 4: Simplify right side
    93,471.95x = 6,102,721,312.79
  5. Step 5: Solve for x
    x = 6,102,721,312.79/93,471.95
  6. Step 6: Final answer
    x = 65,289.33

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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.