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Finding the Fourth Proportional to 247,668.84, 341,787.60 and 140,238.54

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Solution

The fourth proportional to 247,668.84, 341,787.60 and 140,238.54 is: 193,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,668.84 : 341,787.60 = 140,238.54 : x
  2. Step 2: Convert to fraction form
    247,668.84/341,787.60 = 140,238.54/x
  3. Step 3: Cross multiply
    247,668.84x = 341,787.60 × 140,238.54
  4. Step 4: Simplify right side
    247,668.84x = 47,931,794,014.10
  5. Step 5: Solve for x
    x = 47,931,794,014.10/247,668.84
  6. Step 6: Final answer
    x = 193,531.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.