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Finding the Fourth Proportional to 56,912.15, 79,793.65 and 56,912.15

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Solution

The fourth proportional to 56,912.15, 79,793.65 and 56,912.15 is: 79,793.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,912.15 : 79,793.65 = 56,912.15 : x
  2. Step 2: Convert to fraction form
    56,912.15/79,793.65 = 56,912.15/x
  3. Step 3: Cross multiply
    56,912.15x = 79,793.65 × 56,912.15
  4. Step 4: Simplify right side
    56,912.15x = 4,541,228,177.85
  5. Step 5: Solve for x
    x = 4,541,228,177.85/56,912.15
  6. Step 6: Final answer
    x = 79,793.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.