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Finding the Fourth Proportional to 80,793.30, 120,901.95 and 51,225.30

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Solution

The fourth proportional to 80,793.30, 120,901.95 and 51,225.30 is: 76,655.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.30 : 120,901.95 = 51,225.30 : x
  2. Step 2: Convert to fraction form
    80,793.30/120,901.95 = 51,225.30/x
  3. Step 3: Cross multiply
    80,793.30x = 120,901.95 × 51,225.30
  4. Step 4: Simplify right side
    80,793.30x = 6,193,238,659.34
  5. Step 5: Solve for x
    x = 6,193,238,659.34/80,793.30
  6. Step 6: Final answer
    x = 76,655.35

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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.