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Finding the Fourth Proportional to 135,626.75, 203,440.14 and 52,520.75

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Solution

The fourth proportional to 135,626.75, 203,440.14 and 52,520.75 is: 78,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,626.75 : 203,440.14 = 52,520.75 : x
  2. Step 2: Convert to fraction form
    135,626.75/203,440.14 = 52,520.75/x
  3. Step 3: Cross multiply
    135,626.75x = 203,440.14 × 52,520.75
  4. Step 4: Simplify right side
    135,626.75x = 10,684,828,732.91
  5. Step 5: Solve for x
    x = 10,684,828,732.91/135,626.75
  6. Step 6: Final answer
    x = 78,781.13

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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.