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Finding the Fourth Proportional to 84,862.43, 127,244.86 and 34,976.96

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Solution

The fourth proportional to 84,862.43, 127,244.86 and 34,976.96 is: 52,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,862.43 : 127,244.86 = 34,976.96 : x
  2. Step 2: Convert to fraction form
    84,862.43/127,244.86 = 34,976.96/x
  3. Step 3: Cross multiply
    84,862.43x = 127,244.86 × 34,976.96
  4. Step 4: Simplify right side
    84,862.43x = 4,450,638,378.43
  5. Step 5: Solve for x
    x = 4,450,638,378.43/84,862.43
  6. Step 6: Final answer
    x = 52,445.33

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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.