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Finding the Fourth Proportional to 171,371.64, 256,762.22 and 133,434.48

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Solution

The fourth proportional to 171,371.64, 256,762.22 and 133,434.48 is: 199,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,371.64 : 256,762.22 = 133,434.48 : x
  2. Step 2: Convert to fraction form
    171,371.64/256,762.22 = 133,434.48/x
  3. Step 3: Cross multiply
    171,371.64x = 256,762.22 × 133,434.48
  4. Step 4: Simplify right side
    171,371.64x = 34,260,932,642.17
  5. Step 5: Solve for x
    x = 34,260,932,642.17/171,371.64
  6. Step 6: Final answer
    x = 199,921.83

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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.