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Finding the Fourth Proportional to 194,252.20, 291,387.90 and 100,940.20

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Solution

The fourth proportional to 194,252.20, 291,387.90 and 100,940.20 is: 151,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,252.20 : 291,387.90 = 100,940.20 : x
  2. Step 2: Convert to fraction form
    194,252.20/291,387.90 = 100,940.20/x
  3. Step 3: Cross multiply
    194,252.20x = 291,387.90 × 100,940.20
  4. Step 4: Simplify right side
    194,252.20x = 29,412,752,903.58
  5. Step 5: Solve for x
    x = 29,412,752,903.58/194,252.20
  6. Step 6: Final answer
    x = 151,415.29

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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.