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Finding the Fourth Proportional to 237,956.97, 356,821.56 and 138,144.72

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Solution

The fourth proportional to 237,956.97, 356,821.56 and 138,144.72 is: 207,150.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,956.97 : 356,821.56 = 138,144.72 : x
  2. Step 2: Convert to fraction form
    237,956.97/356,821.56 = 138,144.72/x
  3. Step 3: Cross multiply
    237,956.97x = 356,821.56 × 138,144.72
  4. Step 4: Simplify right side
    237,956.97x = 49,293,014,496.16
  5. Step 5: Solve for x
    x = 49,293,014,496.16/237,956.97
  6. Step 6: Final answer
    x = 207,150.96

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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.