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Finding the Fourth Proportional to 275,653.60, 413,383.20 and 125,965.60

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Solution

The fourth proportional to 275,653.60, 413,383.20 and 125,965.60 is: 188,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,653.60 : 413,383.20 = 125,965.60 : x
  2. Step 2: Convert to fraction form
    275,653.60/413,383.20 = 125,965.60/x
  3. Step 3: Cross multiply
    275,653.60x = 413,383.20 × 125,965.60
  4. Step 4: Simplify right side
    275,653.60x = 52,072,062,817.92
  5. Step 5: Solve for x
    x = 52,072,062,817.92/275,653.60
  6. Step 6: Final answer
    x = 188,903.98

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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.