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Finding the Fourth Proportional to 273,057.43, 376,810.53 and 171,137.91

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Solution

The fourth proportional to 273,057.43, 376,810.53 and 171,137.91 is: 236,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,057.43 : 376,810.53 = 171,137.91 : x
  2. Step 2: Convert to fraction form
    273,057.43/376,810.53 = 171,137.91/x
  3. Step 3: Cross multiply
    273,057.43x = 376,810.53 × 171,137.91
  4. Step 4: Simplify right side
    273,057.43x = 64,486,568,304.12
  5. Step 5: Solve for x
    x = 64,486,568,304.12/273,057.43
  6. Step 6: Final answer
    x = 236,164.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.