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Finding the Fourth Proportional to 166,507.80, 249,761.70 and 54,198.60

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Solution

The fourth proportional to 166,507.80, 249,761.70 and 54,198.60 is: 81,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,507.80 : 249,761.70 = 54,198.60 : x
  2. Step 2: Convert to fraction form
    166,507.80/249,761.70 = 54,198.60/x
  3. Step 3: Cross multiply
    166,507.80x = 249,761.70 × 54,198.60
  4. Step 4: Simplify right side
    166,507.80x = 13,536,734,473.62
  5. Step 5: Solve for x
    x = 13,536,734,473.62/166,507.80
  6. Step 6: Final answer
    x = 81,297.90

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1.5x scale

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.