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Finding the Fourth Proportional to 159,516.80, 239,631.60 and 133,272.80

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Solution

The fourth proportional to 159,516.80, 239,631.60 and 133,272.80 is: 200,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,516.80 : 239,631.60 = 133,272.80 : x
  2. Step 2: Convert to fraction form
    159,516.80/239,631.60 = 133,272.80/x
  3. Step 3: Cross multiply
    159,516.80x = 239,631.60 × 133,272.80
  4. Step 4: Simplify right side
    159,516.80x = 31,936,374,300.48
  5. Step 5: Solve for x
    x = 31,936,374,300.48/159,516.80
  6. Step 6: Final answer
    x = 200,206.96

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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.