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Finding the Fourth Proportional to 93,474.80, 140,212.20 and 54,108.80

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Solution

The fourth proportional to 93,474.80, 140,212.20 and 54,108.80 is: 81,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,474.80 : 140,212.20 = 54,108.80 : x
  2. Step 2: Convert to fraction form
    93,474.80/140,212.20 = 54,108.80/x
  3. Step 3: Cross multiply
    93,474.80x = 140,212.20 × 54,108.80
  4. Step 4: Simplify right side
    93,474.80x = 7,586,713,887.36
  5. Step 5: Solve for x
    x = 7,586,713,887.36/93,474.80
  6. Step 6: Final answer
    x = 81,163.20

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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.