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Finding the Fourth Proportional to 129,997, 194,970.84 and 63,370.12

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Solution

The fourth proportional to 129,997, 194,970.84 and 63,370.12 is: 95,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,997 : 194,970.84 = 63,370.12 : x
  2. Step 2: Convert to fraction form
    129,997/194,970.84 = 63,370.12/x
  3. Step 3: Cross multiply
    129,997x = 194,970.84 × 63,370.12
  4. Step 4: Simplify right side
    129,997x = 12,355,325,527.30
  5. Step 5: Solve for x
    x = 12,355,325,527.30/129,997
  6. Step 6: Final answer
    x = 95,043.16

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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.