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Finding the Fourth Proportional to 348,340.56, 522,743.58 and 126,724.56

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Solution

The fourth proportional to 348,340.56, 522,743.58 and 126,724.56 is: 190,171.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,340.56 : 522,743.58 = 126,724.56 : x
  2. Step 2: Convert to fraction form
    348,340.56/522,743.58 = 126,724.56/x
  3. Step 3: Cross multiply
    348,340.56x = 522,743.58 × 126,724.56
  4. Step 4: Simplify right side
    348,340.56x = 66,244,450,168.32
  5. Step 5: Solve for x
    x = 66,244,450,168.32/348,340.56
  6. Step 6: Final answer
    x = 190,171.51

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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.