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Finding the Fourth Proportional to 141,064.20, 194,656.20 and 80,622.84

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Solution

The fourth proportional to 141,064.20, 194,656.20 and 80,622.84 is: 111,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,064.20 : 194,656.20 = 80,622.84 : x
  2. Step 2: Convert to fraction form
    141,064.20/194,656.20 = 80,622.84/x
  3. Step 3: Cross multiply
    141,064.20x = 194,656.20 × 80,622.84
  4. Step 4: Simplify right side
    141,064.20x = 15,693,735,667.61
  5. Step 5: Solve for x
    x = 15,693,735,667.61/141,064.20
  6. Step 6: Final answer
    x = 111,252.43

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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.