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Finding the Fourth Proportional to 136,200.94, 188,049.89 and 85,234.27

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Solution

The fourth proportional to 136,200.94, 188,049.89 and 85,234.27 is: 117,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,200.94 : 188,049.89 = 85,234.27 : x
  2. Step 2: Convert to fraction form
    136,200.94/188,049.89 = 85,234.27/x
  3. Step 3: Cross multiply
    136,200.94x = 188,049.89 × 85,234.27
  4. Step 4: Simplify right side
    136,200.94x = 16,028,294,671.56
  5. Step 5: Solve for x
    x = 16,028,294,671.56/136,200.94
  6. Step 6: Final answer
    x = 117,681.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.