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Finding the Fourth Proportional to 66,806.56, 92,108.10 and 47,709.19

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Solution

The fourth proportional to 66,806.56, 92,108.10 and 47,709.19 is: 65,778.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,806.56 : 92,108.10 = 47,709.19 : x
  2. Step 2: Convert to fraction form
    66,806.56/92,108.10 = 47,709.19/x
  3. Step 3: Cross multiply
    66,806.56x = 92,108.10 × 47,709.19
  4. Step 4: Simplify right side
    66,806.56x = 4,394,402,843.44
  5. Step 5: Solve for x
    x = 4,394,402,843.44/66,806.56
  6. Step 6: Final answer
    x = 65,778.01

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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.