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Finding the Fourth Proportional to 275,644.60, 413,369.70 and 125,956.60

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Solution

The fourth proportional to 275,644.60, 413,369.70 and 125,956.60 is: 188,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,644.60 : 413,369.70 = 125,956.60 : x
  2. Step 2: Convert to fraction form
    275,644.60/413,369.70 = 125,956.60/x
  3. Step 3: Cross multiply
    275,644.60x = 413,369.70 × 125,956.60
  4. Step 4: Simplify right side
    275,644.60x = 52,066,641,955.02
  5. Step 5: Solve for x
    x = 52,066,641,955.02/275,644.60
  6. Step 6: Final answer
    x = 188,890.48

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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.