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Finding the Fourth Proportional to 166,957.78, 250,475.55 and 54,643.54

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Solution

The fourth proportional to 166,957.78, 250,475.55 and 54,643.54 is: 81,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,957.78 : 250,475.55 = 54,643.54 : x
  2. Step 2: Convert to fraction form
    166,957.78/250,475.55 = 54,643.54/x
  3. Step 3: Cross multiply
    166,957.78x = 250,475.55 × 54,643.54
  4. Step 4: Simplify right side
    166,957.78x = 13,686,870,735.45
  5. Step 5: Solve for x
    x = 13,686,870,735.45/166,957.78
  6. Step 6: Final answer
    x = 81,978.04

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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.