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Finding the Fourth Proportional to 185,067.72, 255,393.41 and 100,184.72

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Solution

The fourth proportional to 185,067.72, 255,393.41 and 100,184.72 is: 138,254.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,067.72 : 255,393.41 = 100,184.72 : x
  2. Step 2: Convert to fraction form
    185,067.72/255,393.41 = 100,184.72/x
  3. Step 3: Cross multiply
    185,067.72x = 255,393.41 × 100,184.72
  4. Step 4: Simplify right side
    185,067.72x = 25,586,515,492.80
  5. Step 5: Solve for x
    x = 25,586,515,492.80/185,067.72
  6. Step 6: Final answer
    x = 138,254.88

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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.