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Finding the Fourth Proportional to 129,651.50, 194,510.10 and 36,157.25

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Solution

The fourth proportional to 129,651.50, 194,510.10 and 36,157.25 is: 54,245.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,651.50 : 194,510.10 = 36,157.25 : x
  2. Step 2: Convert to fraction form
    129,651.50/194,510.10 = 36,157.25/x
  3. Step 3: Cross multiply
    129,651.50x = 194,510.10 × 36,157.25
  4. Step 4: Simplify right side
    129,651.50x = 7,032,950,313.23
  5. Step 5: Solve for x
    x = 7,032,950,313.23/129,651.50
  6. Step 6: Final answer
    x = 54,245.04

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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.