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Finding the Fourth Proportional to 93,858.75, 129,504.92 and 55,630.26

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Solution

The fourth proportional to 93,858.75, 129,504.92 and 55,630.26 is: 76,757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,858.75 : 129,504.92 = 55,630.26 : x
  2. Step 2: Convert to fraction form
    93,858.75/129,504.92 = 55,630.26/x
  3. Step 3: Cross multiply
    93,858.75x = 129,504.92 × 55,630.26
  4. Step 4: Simplify right side
    93,858.75x = 7,204,392,092.73
  5. Step 5: Solve for x
    x = 7,204,392,092.73/93,858.75
  6. Step 6: Final answer
    x = 76,757.81

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1.5x scale

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.