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Finding the Fourth Proportional to 247,160.56, 370,742.72 and 161,843.28

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Solution

The fourth proportional to 247,160.56, 370,742.72 and 161,843.28 is: 242,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,160.56 : 370,742.72 = 161,843.28 : x
  2. Step 2: Convert to fraction form
    247,160.56/370,742.72 = 161,843.28/x
  3. Step 3: Cross multiply
    247,160.56x = 370,742.72 × 161,843.28
  4. Step 4: Simplify right side
    247,160.56x = 60,002,217,840.92
  5. Step 5: Solve for x
    x = 60,002,217,840.92/247,160.56
  6. Step 6: Final answer
    x = 242,766.15

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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.