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Finding the Fourth Proportional to 61,839.70, 92,650.20 and 52,435.60

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Solution

The fourth proportional to 61,839.70, 92,650.20 and 52,435.60 is: 78,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,839.70 : 92,650.20 = 52,435.60 : x
  2. Step 2: Convert to fraction form
    61,839.70/92,650.20 = 52,435.60/x
  3. Step 3: Cross multiply
    61,839.70x = 92,650.20 × 52,435.60
  4. Step 4: Simplify right side
    61,839.70x = 4,858,168,827.12
  5. Step 5: Solve for x
    x = 4,858,168,827.12/61,839.70
  6. Step 6: Final answer
    x = 78,560.68

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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.