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Finding the Fourth Proportional to 85,562.28, 118,072.98 and 47,836.44

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Solution

The fourth proportional to 85,562.28, 118,072.98 and 47,836.44 is: 66,012.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,562.28 : 118,072.98 = 47,836.44 : x
  2. Step 2: Convert to fraction form
    85,562.28/118,072.98 = 47,836.44/x
  3. Step 3: Cross multiply
    85,562.28x = 118,072.98 × 47,836.44
  4. Step 4: Simplify right side
    85,562.28x = 5,648,191,023.39
  5. Step 5: Solve for x
    x = 5,648,191,023.39/85,562.28
  6. Step 6: Final answer
    x = 66,012.63

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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.