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Finding the Fourth Proportional to 113,874.25, 170,915.53 and 57,753.09

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Solution

The fourth proportional to 113,874.25, 170,915.53 and 57,753.09 is: 86,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,874.25 : 170,915.53 = 57,753.09 : x
  2. Step 2: Convert to fraction form
    113,874.25/170,915.53 = 57,753.09/x
  3. Step 3: Cross multiply
    113,874.25x = 170,915.53 × 57,753.09
  4. Step 4: Simplify right side
    113,874.25x = 9,870,899,986.49
  5. Step 5: Solve for x
    x = 9,870,899,986.49/113,874.25
  6. Step 6: Final answer
    x = 86,682.46

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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.