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Finding the Fourth Proportional to 395,691.15, 593,531.40 and 96,170.85

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Solution

The fourth proportional to 395,691.15, 593,531.40 and 96,170.85 is: 144,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,691.15 : 593,531.40 = 96,170.85 : x
  2. Step 2: Convert to fraction form
    395,691.15/593,531.40 = 96,170.85/x
  3. Step 3: Cross multiply
    395,691.15x = 593,531.40 × 96,170.85
  4. Step 4: Simplify right side
    395,691.15x = 57,080,419,239.69
  5. Step 5: Solve for x
    x = 57,080,419,239.69/395,691.15
  6. Step 6: Final answer
    x = 144,254.98

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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.