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Finding the Fourth Proportional to 247,991.90, 341,907.60 and 160,621.56

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Solution

The fourth proportional to 247,991.90, 341,907.60 and 160,621.56 is: 221,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,991.90 : 341,907.60 = 160,621.56 : x
  2. Step 2: Convert to fraction form
    247,991.90/341,907.60 = 160,621.56/x
  3. Step 3: Cross multiply
    247,991.90x = 341,907.60 × 160,621.56
  4. Step 4: Simplify right side
    247,991.90x = 54,917,732,087.86
  5. Step 5: Solve for x
    x = 54,917,732,087.86/247,991.90
  6. Step 6: Final answer
    x = 221,449.71

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1.5x scale

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.