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Finding the Fourth Proportional to 165,747.80, 248,621.70 and 54,939.80

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Solution

The fourth proportional to 165,747.80, 248,621.70 and 54,939.80 is: 82,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,747.80 : 248,621.70 = 54,939.80 : x
  2. Step 2: Convert to fraction form
    165,747.80/248,621.70 = 54,939.80/x
  3. Step 3: Cross multiply
    165,747.80x = 248,621.70 × 54,939.80
  4. Step 4: Simplify right side
    165,747.80x = 13,659,226,473.66
  5. Step 5: Solve for x
    x = 13,659,226,473.66/165,747.80
  6. Step 6: Final answer
    x = 82,409.70

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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.