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Finding the Fourth Proportional to 194,188.57, 267,980.27 and 113,631.57

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Solution

The fourth proportional to 194,188.57, 267,980.27 and 113,631.57 is: 156,811.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,188.57 : 267,980.27 = 113,631.57 : x
  2. Step 2: Convert to fraction form
    194,188.57/267,980.27 = 113,631.57/x
  3. Step 3: Cross multiply
    194,188.57x = 267,980.27 × 113,631.57
  4. Step 4: Simplify right side
    194,188.57x = 30,451,018,240.97
  5. Step 5: Solve for x
    x = 30,451,018,240.97/194,188.57
  6. Step 6: Final answer
    x = 156,811.59

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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.