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Finding the Fourth Proportional to 129,993.39, 194,997.06 and 36,506.43

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Solution

The fourth proportional to 129,993.39, 194,997.06 and 36,506.43 is: 54,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,993.39 : 194,997.06 = 36,506.43 : x
  2. Step 2: Convert to fraction form
    129,993.39/194,997.06 = 36,506.43/x
  3. Step 3: Cross multiply
    129,993.39x = 194,997.06 × 36,506.43
  4. Step 4: Simplify right side
    129,993.39x = 7,118,646,521.10
  5. Step 5: Solve for x
    x = 7,118,646,521.10/129,993.39
  6. Step 6: Final answer
    x = 54,761.60

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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.