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Finding the Fourth Proportional to 140,439.41, 210,616.27 and 73,843.41

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Solution

The fourth proportional to 140,439.41, 210,616.27 and 73,843.41 is: 110,742.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,439.41 : 210,616.27 = 73,843.41 : x
  2. Step 2: Convert to fraction form
    140,439.41/210,616.27 = 73,843.41/x
  3. Step 3: Cross multiply
    140,439.41x = 210,616.27 × 73,843.41
  4. Step 4: Simplify right side
    140,439.41x = 15,552,622,340.59
  5. Step 5: Solve for x
    x = 15,552,622,340.59/140,439.41
  6. Step 6: Final answer
    x = 110,742.58

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1.5x scale

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.