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Finding the Fourth Proportional to 339,862.30, 509,760.44 and 103,207.03

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Solution

The fourth proportional to 339,862.30, 509,760.44 and 103,207.03 is: 154,800.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,862.30 : 509,760.44 = 103,207.03 : x
  2. Step 2: Convert to fraction form
    339,862.30/509,760.44 = 103,207.03/x
  3. Step 3: Cross multiply
    339,862.30x = 509,760.44 × 103,207.03
  4. Step 4: Simplify right side
    339,862.30x = 52,610,861,023.89
  5. Step 5: Solve for x
    x = 52,610,861,023.89/339,862.30
  6. Step 6: Final answer
    x = 154,800.52

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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.