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Finding the Fourth Proportional to 165,633.80, 248,450.70 and 54,811.40

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Solution

The fourth proportional to 165,633.80, 248,450.70 and 54,811.40 is: 82,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,633.80 : 248,450.70 = 54,811.40 : x
  2. Step 2: Convert to fraction form
    165,633.80/248,450.70 = 54,811.40/x
  3. Step 3: Cross multiply
    165,633.80x = 248,450.70 × 54,811.40
  4. Step 4: Simplify right side
    165,633.80x = 13,617,930,697.98
  5. Step 5: Solve for x
    x = 13,617,930,697.98/165,633.80
  6. Step 6: Final answer
    x = 82,217.10

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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.