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Finding the Fourth Proportional to 129,616.94, 194,451.87 and 73,482.12

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Solution

The fourth proportional to 129,616.94, 194,451.87 and 73,482.12 is: 110,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,616.94 : 194,451.87 = 73,482.12 : x
  2. Step 2: Convert to fraction form
    129,616.94/194,451.87 = 73,482.12/x
  3. Step 3: Cross multiply
    129,616.94x = 194,451.87 × 73,482.12
  4. Step 4: Simplify right side
    129,616.94x = 14,288,735,645.56
  5. Step 5: Solve for x
    x = 14,288,735,645.56/129,616.94
  6. Step 6: Final answer
    x = 110,238.18

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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.