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Finding the Fourth Proportional to 73,118.25, 100,907.51 and 41,290.65

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Solution

The fourth proportional to 73,118.25, 100,907.51 and 41,290.65 is: 56,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,118.25 : 100,907.51 = 41,290.65 : x
  2. Step 2: Convert to fraction form
    73,118.25/100,907.51 = 41,290.65/x
  3. Step 3: Cross multiply
    73,118.25x = 100,907.51 × 41,290.65
  4. Step 4: Simplify right side
    73,118.25x = 4,166,536,471.33
  5. Step 5: Solve for x
    x = 4,166,536,471.33/73,118.25
  6. Step 6: Final answer
    x = 56,983.54

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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.