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Finding the Fourth Proportional to 239,425.90, 359,142.39 and 70,963.31

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Solution

The fourth proportional to 239,425.90, 359,142.39 and 70,963.31 is: 106,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,425.90 : 359,142.39 = 70,963.31 : x
  2. Step 2: Convert to fraction form
    239,425.90/359,142.39 = 70,963.31/x
  3. Step 3: Cross multiply
    239,425.90x = 359,142.39 × 70,963.31
  4. Step 4: Simplify right side
    239,425.90x = 25,485,933,653.57
  5. Step 5: Solve for x
    x = 25,485,933,653.57/239,425.90
  6. Step 6: Final answer
    x = 106,446.02

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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.