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Finding the Fourth Proportional to 156,375.76, 215,793.24 and 92,675.80

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Solution

The fourth proportional to 156,375.76, 215,793.24 and 92,675.80 is: 127,889.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,375.76 : 215,793.24 = 92,675.80 : x
  2. Step 2: Convert to fraction form
    156,375.76/215,793.24 = 92,675.80/x
  3. Step 3: Cross multiply
    156,375.76x = 215,793.24 × 92,675.80
  4. Step 4: Simplify right side
    156,375.76x = 19,998,811,151.59
  5. Step 5: Solve for x
    x = 19,998,811,151.59/156,375.76
  6. Step 6: Final answer
    x = 127,889.46

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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.