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Finding the Fourth Proportional to 61,709.98, 85,096.10 and 52,787.02

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Solution

The fourth proportional to 61,709.98, 85,096.10 and 52,787.02 is: 72,791.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,709.98 : 85,096.10 = 52,787.02 : x
  2. Step 2: Convert to fraction form
    61,709.98/85,096.10 = 52,787.02/x
  3. Step 3: Cross multiply
    61,709.98x = 85,096.10 × 52,787.02
  4. Step 4: Simplify right side
    61,709.98x = 4,491,969,532.62
  5. Step 5: Solve for x
    x = 4,491,969,532.62/61,709.98
  6. Step 6: Final answer
    x = 72,791.62

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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.