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Finding the Fourth Proportional to 143,959.88, 215,939.82 and 73,794.44

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Solution

The fourth proportional to 143,959.88, 215,939.82 and 73,794.44 is: 110,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,959.88 : 215,939.82 = 73,794.44 : x
  2. Step 2: Convert to fraction form
    143,959.88/215,939.82 = 73,794.44/x
  3. Step 3: Cross multiply
    143,959.88x = 215,939.82 × 73,794.44
  4. Step 4: Simplify right side
    143,959.88x = 15,935,158,090.60
  5. Step 5: Solve for x
    x = 15,935,158,090.60/143,959.88
  6. Step 6: Final answer
    x = 110,691.66

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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.