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Finding the Fourth Proportional to 134,549.55, 185,664.42 and 82,858.43

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Solution

The fourth proportional to 134,549.55, 185,664.42 and 82,858.43 is: 114,336.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,549.55 : 185,664.42 = 82,858.43 : x
  2. Step 2: Convert to fraction form
    134,549.55/185,664.42 = 82,858.43/x
  3. Step 3: Cross multiply
    134,549.55x = 185,664.42 × 82,858.43
  4. Step 4: Simplify right side
    134,549.55x = 15,383,861,419.74
  5. Step 5: Solve for x
    x = 15,383,861,419.74/134,549.55
  6. Step 6: Final answer
    x = 114,336.03

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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.