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Finding the Fourth Proportional to 82,382.70, 123,537.60 and 37,986.60

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Solution

The fourth proportional to 82,382.70, 123,537.60 and 37,986.60 is: 56,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,382.70 : 123,537.60 = 37,986.60 : x
  2. Step 2: Convert to fraction form
    82,382.70/123,537.60 = 37,986.60/x
  3. Step 3: Cross multiply
    82,382.70x = 123,537.60 × 37,986.60
  4. Step 4: Simplify right side
    82,382.70x = 4,692,773,396.16
  5. Step 5: Solve for x
    x = 4,692,773,396.16/82,382.70
  6. Step 6: Final answer
    x = 56,963.09

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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.