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Finding the Fourth Proportional to 171,919.52, 257,917.53 and 56,519.22

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Solution

The fourth proportional to 171,919.52, 257,917.53 and 56,519.22 is: 84,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,919.52 : 257,917.53 = 56,519.22 : x
  2. Step 2: Convert to fraction form
    171,919.52/257,917.53 = 56,519.22/x
  3. Step 3: Cross multiply
    171,919.52x = 257,917.53 × 56,519.22
  4. Step 4: Simplify right side
    171,919.52x = 14,577,297,619.93
  5. Step 5: Solve for x
    x = 14,577,297,619.93/171,919.52
  6. Step 6: Final answer
    x = 84,791.41

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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.