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Finding the Fourth Proportional to 339,761.46, 468,871.74 and 186,815.28

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Solution

The fourth proportional to 339,761.46, 468,871.74 and 186,815.28 is: 257,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,761.46 : 468,871.74 = 186,815.28 : x
  2. Step 2: Convert to fraction form
    339,761.46/468,871.74 = 186,815.28/x
  3. Step 3: Cross multiply
    339,761.46x = 468,871.74 × 186,815.28
  4. Step 4: Simplify right side
    339,761.46x = 87,592,405,392.19
  5. Step 5: Solve for x
    x = 87,592,405,392.19/339,761.46
  6. Step 6: Final answer
    x = 257,805.60

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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.