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Finding the Fourth Proportional to 193,249.58, 289,738.58 and 85,127.64

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Solution

The fourth proportional to 193,249.58, 289,738.58 and 85,127.64 is: 127,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,249.58 : 289,738.58 = 85,127.64 : x
  2. Step 2: Convert to fraction form
    193,249.58/289,738.58 = 85,127.64/x
  3. Step 3: Cross multiply
    193,249.58x = 289,738.58 × 85,127.64
  4. Step 4: Simplify right side
    193,249.58x = 24,664,761,532.35
  5. Step 5: Solve for x
    x = 24,664,761,532.35/193,249.58
  6. Step 6: Final answer
    x = 127,631.64

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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.