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Finding the Fourth Proportional to 125,626.80, 188,380.80 and 73,052.40

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Solution

The fourth proportional to 125,626.80, 188,380.80 and 73,052.40 is: 109,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,626.80 : 188,380.80 = 73,052.40 : x
  2. Step 2: Convert to fraction form
    125,626.80/188,380.80 = 73,052.40/x
  3. Step 3: Cross multiply
    125,626.80x = 188,380.80 × 73,052.40
  4. Step 4: Simplify right side
    125,626.80x = 13,761,669,553.92
  5. Step 5: Solve for x
    x = 13,761,669,553.92/125,626.80
  6. Step 6: Final answer
    x = 109,544.06

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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.