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Finding the Fourth Proportional to 266,094.20, 399,141.30 and 191,736.20

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Solution

The fourth proportional to 266,094.20, 399,141.30 and 191,736.20 is: 287,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,094.20 : 399,141.30 = 191,736.20 : x
  2. Step 2: Convert to fraction form
    266,094.20/399,141.30 = 191,736.20/x
  3. Step 3: Cross multiply
    266,094.20x = 399,141.30 × 191,736.20
  4. Step 4: Simplify right side
    266,094.20x = 76,529,836,125.06
  5. Step 5: Solve for x
    x = 76,529,836,125.06/266,094.20
  6. Step 6: Final answer
    x = 287,604.30

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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.