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Finding the Fourth Proportional to 339,735.16, 509,609.94 and 123,586.60

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Solution

The fourth proportional to 339,735.16, 509,609.94 and 123,586.60 is: 185,382.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,735.16 : 509,609.94 = 123,586.60 : x
  2. Step 2: Convert to fraction form
    339,735.16/509,609.94 = 123,586.60/x
  3. Step 3: Cross multiply
    339,735.16x = 509,609.94 × 123,586.60
  4. Step 4: Simplify right side
    339,735.16x = 62,980,959,810.80
  5. Step 5: Solve for x
    x = 62,980,959,810.80/339,735.16
  6. Step 6: Final answer
    x = 185,382.52

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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.