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Finding the Fourth Proportional to 339,773.09, 468,892.19 and 186,817.91

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Solution

The fourth proportional to 339,773.09, 468,892.19 and 186,817.91 is: 257,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,773.09 : 468,892.19 = 186,817.91 : x
  2. Step 2: Convert to fraction form
    339,773.09/468,892.19 = 186,817.91/x
  3. Step 3: Cross multiply
    339,773.09x = 468,892.19 × 186,817.91
  4. Step 4: Simplify right side
    339,773.09x = 87,597,457,073.71
  5. Step 5: Solve for x
    x = 87,597,457,073.71/339,773.09
  6. Step 6: Final answer
    x = 257,811.64

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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.