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Finding the Fourth Proportional to 61,789.62, 92,722.08 and 56,770.86

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Solution

The fourth proportional to 61,789.62, 92,722.08 and 56,770.86 is: 85,190.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,789.62 : 92,722.08 = 56,770.86 : x
  2. Step 2: Convert to fraction form
    61,789.62/92,722.08 = 56,770.86/x
  3. Step 3: Cross multiply
    61,789.62x = 92,722.08 × 56,770.86
  4. Step 4: Simplify right side
    61,789.62x = 5,263,912,222.59
  5. Step 5: Solve for x
    x = 5,263,912,222.59/61,789.62
  6. Step 6: Final answer
    x = 85,190.88

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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.