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Finding the Fourth Proportional to 247,797.72, 341,928.14 and 156,993.48

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Solution

The fourth proportional to 247,797.72, 341,928.14 and 156,993.48 is: 216,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,797.72 : 341,928.14 = 156,993.48 : x
  2. Step 2: Convert to fraction form
    247,797.72/341,928.14 = 156,993.48/x
  3. Step 3: Cross multiply
    247,797.72x = 341,928.14 × 156,993.48
  4. Step 4: Simplify right side
    247,797.72x = 53,680,487,823.56
  5. Step 5: Solve for x
    x = 53,680,487,823.56/247,797.72
  6. Step 6: Final answer
    x = 216,630.27

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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.