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Finding the Fourth Proportional to 194,441.80, 291,489.90 and 127,913.80

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Solution

The fourth proportional to 194,441.80, 291,489.90 and 127,913.80 is: 191,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,441.80 : 291,489.90 = 127,913.80 : x
  2. Step 2: Convert to fraction form
    194,441.80/291,489.90 = 127,913.80/x
  3. Step 3: Cross multiply
    194,441.80x = 291,489.90 × 127,913.80
  4. Step 4: Simplify right side
    194,441.80x = 37,285,580,770.62
  5. Step 5: Solve for x
    x = 37,285,580,770.62/194,441.80
  6. Step 6: Final answer
    x = 191,757.02

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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.