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Finding the Fourth Proportional to 339,760.85, 509,628.30 and 103,093.97

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Solution

The fourth proportional to 339,760.85, 509,628.30 and 103,093.97 is: 154,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,760.85 : 509,628.30 = 103,093.97 : x
  2. Step 2: Convert to fraction form
    339,760.85/509,628.30 = 103,093.97/x
  3. Step 3: Cross multiply
    339,760.85x = 509,628.30 × 103,093.97
  4. Step 4: Simplify right side
    339,760.85x = 52,539,602,123.21
  5. Step 5: Solve for x
    x = 52,539,602,123.21/339,760.85
  6. Step 6: Final answer
    x = 154,637.01

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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.