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Finding the Fourth Proportional to 247,296.64, 341,172.72 and 161,356.72

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Solution

The fourth proportional to 247,296.64, 341,172.72 and 161,356.72 is: 222,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,296.64 : 341,172.72 = 161,356.72 : x
  2. Step 2: Convert to fraction form
    247,296.64/341,172.72 = 161,356.72/x
  3. Step 3: Cross multiply
    247,296.64x = 341,172.72 × 161,356.72
  4. Step 4: Simplify right side
    247,296.64x = 55,050,511,052.68
  5. Step 5: Solve for x
    x = 55,050,511,052.68/247,296.64
  6. Step 6: Final answer
    x = 222,609.22

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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.