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Finding the Fourth Proportional to 191,591.38, 264,393.48 and 106,709.05

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Solution

The fourth proportional to 191,591.38, 264,393.48 and 106,709.05 is: 147,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,591.38 : 264,393.48 = 106,709.05 : x
  2. Step 2: Convert to fraction form
    191,591.38/264,393.48 = 106,709.05/x
  3. Step 3: Cross multiply
    191,591.38x = 264,393.48 × 106,709.05
  4. Step 4: Simplify right side
    191,591.38x = 28,213,177,076.99
  5. Step 5: Solve for x
    x = 28,213,177,076.99/191,591.38
  6. Step 6: Final answer
    x = 147,257.03

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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.