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Finding the Fourth Proportional to 133,586.78, 200,305.11 and 91,514.30

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Solution

The fourth proportional to 133,586.78, 200,305.11 and 91,514.30 is: 137,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,586.78 : 200,305.11 = 91,514.30 : x
  2. Step 2: Convert to fraction form
    133,586.78/200,305.11 = 91,514.30/x
  3. Step 3: Cross multiply
    133,586.78x = 200,305.11 × 91,514.30
  4. Step 4: Simplify right side
    133,586.78x = 18,330,781,928.07
  5. Step 5: Solve for x
    x = 18,330,781,928.07/133,586.78
  6. Step 6: Final answer
    x = 137,220.03

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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.