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Finding the Fourth Proportional to 239,463.41, 330,116.16 and 188,387.45

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Solution

The fourth proportional to 239,463.41, 330,116.16 and 188,387.45 is: 259,704.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,463.41 : 330,116.16 = 188,387.45 : x
  2. Step 2: Convert to fraction form
    239,463.41/330,116.16 = 188,387.45/x
  3. Step 3: Cross multiply
    239,463.41x = 330,116.16 × 188,387.45
  4. Step 4: Simplify right side
    239,463.41x = 62,189,739,891.87
  5. Step 5: Solve for x
    x = 62,189,739,891.87/239,463.41
  6. Step 6: Final answer
    x = 259,704.56

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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.