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Finding the Fourth Proportional to 75,162.70, 103,724.30 and 41,628.70

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Solution

The fourth proportional to 75,162.70, 103,724.30 and 41,628.70 is: 57,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,162.70 : 103,724.30 = 41,628.70 : x
  2. Step 2: Convert to fraction form
    75,162.70/103,724.30 = 41,628.70/x
  3. Step 3: Cross multiply
    75,162.70x = 103,724.30 × 41,628.70
  4. Step 4: Simplify right side
    75,162.70x = 4,317,907,767.41
  5. Step 5: Solve for x
    x = 4,317,907,767.41/75,162.70
  6. Step 6: Final answer
    x = 57,447.48

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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.