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Finding the Fourth Proportional to 114,943.80, 172,431.90 and 36,049.80

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Solution

The fourth proportional to 114,943.80, 172,431.90 and 36,049.80 is: 54,079.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,943.80 : 172,431.90 = 36,049.80 : x
  2. Step 2: Convert to fraction form
    114,943.80/172,431.90 = 36,049.80/x
  3. Step 3: Cross multiply
    114,943.80x = 172,431.90 × 36,049.80
  4. Step 4: Simplify right side
    114,943.80x = 6,216,135,508.62
  5. Step 5: Solve for x
    x = 6,216,135,508.62/114,943.80
  6. Step 6: Final answer
    x = 54,079.78

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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.