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Finding the Fourth Proportional to 171,789.44, 257,758.32 and 92,959.28

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Solution

The fourth proportional to 171,789.44, 257,758.32 and 92,959.28 is: 139,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,789.44 : 257,758.32 = 92,959.28 : x
  2. Step 2: Convert to fraction form
    171,789.44/257,758.32 = 92,959.28/x
  3. Step 3: Cross multiply
    171,789.44x = 257,758.32 × 92,959.28
  4. Step 4: Simplify right side
    171,789.44x = 23,961,027,841.21
  5. Step 5: Solve for x
    x = 23,961,027,841.21/171,789.44
  6. Step 6: Final answer
    x = 139,479.05

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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.