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Finding the Fourth Proportional to 339,346.70, 468,304.09 and 186,399.04

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Solution

The fourth proportional to 339,346.70, 468,304.09 and 186,399.04 is: 257,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,346.70 : 468,304.09 = 186,399.04 : x
  2. Step 2: Convert to fraction form
    339,346.70/468,304.09 = 186,399.04/x
  3. Step 3: Cross multiply
    339,346.70x = 468,304.09 × 186,399.04
  4. Step 4: Simplify right side
    339,346.70x = 87,291,432,804.07
  5. Step 5: Solve for x
    x = 87,291,432,804.07/339,346.70
  6. Step 6: Final answer
    x = 257,233.78

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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.