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Finding the Fourth Proportional to 84,861.43, 127,243.36 and 34,975.96

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Solution

The fourth proportional to 84,861.43, 127,243.36 and 34,975.96 is: 52,443.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,861.43 : 127,243.36 = 34,975.96 : x
  2. Step 2: Convert to fraction form
    84,861.43/127,243.36 = 34,975.96/x
  3. Step 3: Cross multiply
    84,861.43x = 127,243.36 × 34,975.96
  4. Step 4: Simplify right side
    84,861.43x = 4,450,458,264.08
  5. Step 5: Solve for x
    x = 4,450,458,264.08/84,861.43
  6. Step 6: Final answer
    x = 52,443.83

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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.