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Finding the Fourth Proportional to 239,773.45, 359,660.13 and 71,293.09

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Solution

The fourth proportional to 239,773.45, 359,660.13 and 71,293.09 is: 106,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,773.45 : 359,660.13 = 71,293.09 : x
  2. Step 2: Convert to fraction form
    239,773.45/359,660.13 = 71,293.09/x
  3. Step 3: Cross multiply
    239,773.45x = 359,660.13 × 71,293.09
  4. Step 4: Simplify right side
    239,773.45x = 25,641,282,017.50
  5. Step 5: Solve for x
    x = 25,641,282,017.50/239,773.45
  6. Step 6: Final answer
    x = 106,939.62

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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.